Bài 1 : Cho dạng đúng của động từ trong ngoặc 
1.They suggest that you(keep)_______ working hard to achieve your goal
2.Peter suggested that Jane(not spend)________ too much time on computer
3.My friend suggested(not take)________the dog for a walk as it was snowing
4.The bookseller suggested his customer (buy)_______ The newly as it was snowing outside
5.My teacher suggests that we(use)______ paperrback dictionary to look up new words instead of using online dictionary
6.It is suggested that children (learn)______ a foreign language at an early age
7.The tour guide suggested that we(try)________ the local specialties 
8.My classmates suggest(throw)_________ a party to celebrate the Teacher's Day