Bài 3: Chọn đáp án đúng để hoàn thành các câu sau.
1. Oxford University is regarded ________ the oldest university in the UK.
a. as        b. in          c. for       d. of
2. Tickets are a bit harder to buy right on the pot, so you’d better book ________ advance.
a. for         b. of       c. by      d. in
3. The stone stelae were ________ with the names and places of birth of 1307 graduates.
a. written b. learnt c. carved d. selected
4. Chu Van An was one of the most famous ________ at the Imperial Academy.
a. founders              b. statues          c. teachers        d. doctors
5. The students of the Imperial Academy ________ by very famous scholars.
a. are studied          b. were taught             c. have learnt           d. was educated
6. We ________ leave now or we’ll miss the train.
a. can          b. shall        c. had better          c. shouldn’t
7. He bought a picture of the Temple of Literature as a ________ of his trip to Hanoi.
a. souvenir b. landmark c. symbol d. tablet
8. ________ was the University of Cambridge formed? – In 1209.
a. What          b. Where               c. How         d. When
9. Huong Pagoda is a great ________ spot in Hanoi.
a. see-sight         b. sight-see         c. seeing-sight         d. sight-seeing
10. ________ to Hanoi? – Yes, I went there last summer.
a. Were you ever       b. Have you ever been
c. Did you ever go        d. Were you ever go
 

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Tìm giá trị lớn nhất và giá trị nhỏ nhất của hàm số: $f\left(x\right)={\sin }^{4}x+{\cos }^{4}x$