It’s a pity you didn’t ask beca...

Câu hỏi: It’s a pity you didn’t ask because I ______________you.

A. should have helped

B.  could have helped

C. must have helped

D. would have helped

A. for learning

B.  learning

C. to learn

D. learned

A. refuses

B. refused

C. had refused

D. would refuse.