EXERCISE 5.

Câu hỏi

CÂU 5. They _______ football for an hour when it suddenly started to rain.

A. had played

B. had been playing

C. were playing

D. played

Đáp án
B. had been playing

Câu hỏi thuộc Bài tập:

FRIENDS GLOBAL 12 - UNIT 5 - VOCABULARY AND GRAMMAR