Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

In this neighborhood, the air is very polluted. We wish it ________ cleaner.

A. is

B. were

C. will be

D. has been

Đáp án
B. were

Câu hỏi thuộc Bài tập:

E9- TĐ- Test for Unit 3 (1)