5. Make sure you book a hotel before you come to our island, especially in the summer.
→ Đáp án: A. book (book a hotel = đặt phòng khách sạn)

6. My parents asked us not to spend too much time playing computer games.
→ Đáp án: C. not to spend (cấu trúc: ask + sb + not to + V)

7. Is English a(n) official language in your country?
→ Đáp án: B. official (official language = ngôn ngữ chính thức)

8. It’s good to have someone to guide you when you are visiting a new place.
→ Đáp án: C. guide (guide = hướng dẫn, dẫn đường)

9. There isn’t any milk left. We have to buy some.
→ Đáp án: B. any (câu phủ định + any)

10. The hotel where we are staying is quite luxurious.
→ Đáp án: D. staying (stay in a hotel = ở khách sạn)