3: He spent all that money last week. He _______ so much.

A. didn't need to spend

B. shouldn't spend

C. needn't have spent

D. didn't have to spend

4.He had to work hard so that he _______ his family.

A. may support

B. supported

C. can support

D. could support

5. They have plenty of time, so they need not _______.

A. be hurry

B. to hurry

C. hurry

D. to be hurry

                                                          chúc bạn học tôt !!!!!!

3. C 

→ needn't have spent: đã không nên tiêu (tức là anh ta đã tiêu rồi)

4. D

→ vì trong câu mẫu có từ "had" → thì quá khứ → chọn Could.

5. C

→ need not hurry = needn't hurry = don't need to hurry = không cần phải vội vàng.

`#Myy`