Peter Pan ☠
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1. D: Peter Pan who was my classmate will visit my aunt this Sunday.
N: Peter Pan, who was my classmate, will visit my aunt this Sunday.
2. D: Kenny who is the lovely boy is in my class.
N: Kenny, who is the lovely boy, is in my class.
3. D: Mary is arguing with Peggy who is a horrible person.
Mary is arguing with Peggy, who is a horrible person.
4. D: I will go shopping with Anna who is a hardworking person.
N: I will go shopping with Anna, who is a hardworking person.

A: Which story would you like to read?
(Bạn muốn đọc câu chuyện nào?)
B: I’d like to read The Secret of the Old Clock. I like mystery stories. How about you?
(Mình muốn đọc Bí mật của chiếc đồng hồ cũ. Mình thích những câu chuyện bí ẩn. Còn bạn thì sao?)
A: I’d like to read My side of the Mountain. I like adventure stories.
(Mình muốn đọc My side of the Mountain. Mình thích những câu chuyện phiêu lưu.)


1. What / housework / you / do / every day / ?
→ What housework do you do every day?
2. Which / story / would / you / like / read? - I’d / like / read / Peter Pan /.
→ Which story would you like to read? - I'd like to read Peter Pan.
3. Which / club / you / want / join /?
→ Which club do you want to join?
4. What / kind / book / be / it? - It / be / mystery novel /.
→ What kind of book is it? - It is a mystery novel.
5. Who / be / author / the book? - It / be / by / Nancy Springer /.
→ Who is the author of the book? - It is written by Nancy Springer.
6. How often / your sister / go / shopping? - She / usually / go / shopping / weekend /.
→ How often does your sister go shopping? - She usually goes shopping on the weekend.
7. Lisa / often / have / picnic / the park / Sunday morning /.
→ Lisa often has a picnic in the park on Sunday morning.
8. Michael / watch / movie / home / tonight /?
→ Will Michael watch a movie at home tonight?
9. What time / your mother / usually / make dinner /?
→ What time does your mother usually make dinner?
10. There / be / tug of war / music performance / at / festival /.
→ There is a tug of war and music performances at the festival.

IV. Rewrite the sentence without changing the meaning.
1. My favourite activities are English and Geography.
I like English and Geography.
2. J.M. Barrie is the author of Peter Pan novel.
J.M. Barrie is the Peter Pan author.
3. There are thirty students in our class.
Our class have thirty students.
4. What is the number of this house?
What is this house address?
5. John has a sister, Jerry.
Jerry is John's sister.
6. How many classes are there in your school?
How many classes does your school have?
7. My mother teaches English at this school.
My mother is teaching English at this school.
8. My house is behind the school.
The school is in front of of my house.
9. She likes noodles.
Her favorite food is noodles
10. Phong usually takes the bus to school..
Phong usually goes to school by bus.
IV. Rewrite the sentence without changing the meaning.
1. My favourite activities are English and Geography.
I like English and Geography.
2. J.M. Barrie is the author of Peter Pan novel.
J.M. Barrie is the Peter 's Pan author.
3. There are thirty students in our class.
Our class have thirty students.
4. What is the number of this house?
What is this house address?
5. John has a sister, Jerry.
Jerry is John's sister.
6. How many classes are there in your school?
How many classes does your school have?
7. My mother teaches English at this school.
My mother is teaching English at this school.
8. My house is behind the school.
The school is in front of of my house.
9. She likes noodles.
Her favorite food is noodles
10. Phong usually takes the bus to school..
Phong usually goes to school by bus.

\(a^2+b^2+c^2=1\Rightarrow\left\{{}\begin{matrix}a^2\le1\\b^2\le1\\c^2\le1\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}\left|a\right|\le1\\\left|b\right|\le1\\\left|c\right|\le1\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}a^3\le a^2\\b^3\le b^2\\c^3\le c^2\end{matrix}\right.\)
\(\Rightarrow a^3+b^3+c^3\le a^2+b^2+c^2=1\)
Đẳng thức xảy ra khi và chỉ khi: \(\left(a;b;c\right)=\left(0;0;1\right)\) và các hoán vị
\(\Rightarrow S=0+0+1=1\)

Kí hiệu diện tích là S
(*)SABN= 2/3 SABC
-Chung chiều cao hạ từB xuống AC
-Đáy AN = 1/3 AC (Vì CN = 1/3 AC )
Diện tích tam giác ABN là:
45 x 2/3 = 30 (cm2)
(*)SBNC = 1/3 SABC
-Chung chiều cao hạ từ B xuống AC
-Đáy CN = 1/3 AC
Diện tích tam giác BNC là:
45 x 1/3 =15 ( cm2 )
(*)SMBN = 2/3 SABN
-Chung chiều cao hạ từ đỉnh N xuống AB
-Đáy BM = 2/3 AB ( Vì AM = 1/2 MB)
Diện tích tam giác BMN là:
30 x 2/3 = 20 (cm2)
Diện tích tứ giác BMNC là :
20 + 15 = 35(cm2)
Đáp số :35cm2

Câu 1: Đơn thức là: \(3xy^2z^3\)
⇒ Chọn D
Câu 2: Hai đơn thức đồng dạng là: \(\dfrac{1}{2}x^2y^2\) và \(-3x^2y^2\)
⇒ Chọn C
Câu 3: Hằng đẳng thức là: \(3\left(x+y\right)=3x+3y\)
⇒ Chọn B
Câu 4: \(x^2-...=\left(x-4\right)\left(x+4\right)\Rightarrow x^2-...=x^2-4^2\text{⇒}...=4^2=16\)
⇒ Chọn A
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