EXERCISE 5.

Câu hỏi

CÂU 3. I _______ for half an hour outside the cinema before my friends arrived.

A. had waited

B. had been waiting

C. was waiting

D. waited

Đáp án
B. had been waiting

Câu hỏi thuộc Bài tập:

FRIENDS GLOBAL 12 - UNIT 5 - VOCABULARY AND GRAMMAR