(Viên chức Mầm non) 30 đề ôn thi tiếng Anh có đáp án - Phần 18

He ___________ to give up smoking since last week.

8/30

He ___________ to give up smoking since last week.

was trying

have tried

has tried

tried

Giải thích

Chọn đáp án C

Giải thích: since: dùng htht