=>
1. We had to cancel the game because it was raining hard.
-> because : bởi vì
2. I wish I had enough money to buy that book.
-> câu ước ở hiện tại wish S V2/ed
3. Binh asked Lien if she lived in Bac Giang city.
-> câu tường thuật dạng Yes/No questions : asked sb if S V(lùi thì, HTĐ -> QKĐ)
4. Some English books have been bought.
-> bị động HTHT have/has been V3/ed
5. They have played tennis since 2003.
-> chuyển QKĐ sang HTHT, S have/has V3/ed, since + mốc thời gian
6. Is this the best refrigerator you have?
-> so sánh nhất của good là best
7. You don't need to talk so loudly./ You don't have to talk so loudly.
-> don't need to V : không cần làm gì ~ don't have to V
8. My sister began to learn English five years ago.
-> begin to V : bắt đầu làm gì
9. Long spends two hours doing his homework every day.
-> spend time Ving ~ take sb time to V
10. A supermarket was built near the airport last year.
-> bị động QKĐ was/were V3/ed
11. Apples are not usually as expensive as oranges.
-> so sánh bằng as adj as
12. It is not easy to find an apartment in a big city.
-> It is (not) adj to V