MR. BAKER ... IN THE ARMY FROM 1960 TO 1980.A. HAD SERVEDB. HAS SE...

16. - 3500 CAU TRAC NGHIEM ON TAP AV THCS

3500 CAU TRAC NGHIEM ON TAP AV THCS

Nội dung
Đáp án tham khảo

16. Mr. Baker ... in the army from 1960 to 1980.

a. had served

b. has served

c. is serving

d. served

 d