=>
1. We should eat a lot of fruit and vegetables every day.
-> should V : nên làm gì
2. Because it rained heavily, we couldn't keep on cleaning the streets.
-> Because S V : bởi vì
3. Unless the weather improves, the garden party won't take place.
-> unless ~ if not
4. The library lend books to both students and teachers. (đề bài nên được sửa lend -> lends)
-> lend sth to sb ~ cho ai mượn cái gì
5. He plays this piece of music more beautifully than anybody else.
-> so sánh hơn more adj/adv than