EXERCISE 5.

Câu hỏi

CÂU 4. They _______ Spanish for five years before they visited Mexico.

A. had learned

B. had been learning

C. were learning

D. learned

Đáp án
B. had been learning

Câu hỏi thuộc Bài tập:

FRIENDS GLOBAL 12 - UNIT 5 - VOCABULARY AND GRAMMAR