chọn to hay with trong câu: The angry mother is shouting _____ her naughty son playing football in the living room
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31 are going to visit
32 is
33 will open
34 is
35 discussing
36 will be getting
37 is
38 waiting
39 to learn
40 took
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21. Nick got 100% on his physics test. His twin brother, Adam had to retake the test, ________.
A. so B. however C. but D. although
22. Frank has a(n) ________ suitcase.
A. small light old brown B. small old light brown
C. light brown old small D. old small light brown
23. In Viet Nam, spring rolls are ________ served at a family gathering or anniversary dinner.
A. most B. most of C. mostly D. almost
24. She's sure that they will find the film ________.
A. entertaining B. entertain C. entertainment D. entertained
25. Nowadays, a lot of ________ live in a nursing home.
A. homeless people B. elderly people
C. street children D. disabled people
26. When I came into the class, I realized I knew ________.
A. all them B. they all C. all of they D. them
27. ________ all the way to school, I can see a " No parking" sign.
A. On B. In C. At D. By
28. There are ________ buses from Tan Son Nhat airport to the city center. Buses depart every 15 minutes.
A. friendly B. public C. easy D. frequent
29. The fewer bags you take, ________ trouble you will have on route.
A. the fewer B. the lesser C. the less D. the least
30. Peter: What would you like for dinner?
Ann: ________ we're both so tired, why don't we order a pizza.
A. However B. Since C. Moreover D. Although
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Chỗ sai là spends -> should spend
Cấu trúc : S + suggest + v-ing hoặc S + suggest + that + S + ( should) + V nguyên mẫu.
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I had a toothace because i ate a lot of sweets.
dễ quá anh em học lớp 4 t.a lớp 5
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Ta có: \(\dfrac{a}{2}=\dfrac{b}{3}\)
=>\(\dfrac{a}{10}=\dfrac{b}{15}\left(1\right)\)
\(\dfrac{b}{5}=\dfrac{c}{4}\)
=>\(\dfrac{b}{15}=\dfrac{c}{12}\left(2\right)\)
Từ (1),(2) suy ra \(\dfrac{a}{10}=\dfrac{b}{15}=\dfrac{c}{12}\)
mà a-b+c=21
nên Áp dụng tính chất của dãy tỉ số bằng nhau, ta được:
\(\dfrac{a}{10}=\dfrac{b}{15}=\dfrac{c}{12}=\dfrac{a-b+c}{10-15+12}=\dfrac{21}{7}=3\)
=>\(\left\{{}\begin{matrix}a=3\cdot10=30\\b=3\cdot15=45\\c=3\cdot12=36\end{matrix}\right.\)
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Giải:
Thời gian Nam lên dốc là: 160 : 2 = 80 (giây)
Vận tốc trung bình của Nam trên cả đoạn đường dốc là:
(160 + 140) : (30 + 80) = \(\frac{30}{11}\) (m/s)
Kết luận vận tốc trung bình của Nam trên cả quãng đường đó là:
\(\frac{30}{11}\) m/s
because
The sentence should read: The angry mother is shouting at her naughty son playing football in the living room.