(Viên chức Mầm non) 30 đề ôn thi tiếng Anh có đáp án - Phần 3
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I had no difficulty ______ on with the job of developing a comprehensive test ban treaty.

13/30

I had no difficulty ______ on with the job of developing a comprehensive test ban treaty.

to get

getting

at getting

on getting

Giải thích

Chọn đáp án B

Giải thích: have difficulty/ trouble/ problem + ving: thể sai bảo