IT WAS REALLY KIND... YOU TO HELP THOSE POOR PEOPLE.A. BY...

25. - DE THI THU DAI HOC MON ANH VA DAP AN
Tiếng Anh DE THI THU DAI HOC MON ANH VA DAP AN

25. It was really kind... you to help those poor people.

A. by

B. of

C. at

D. to