Question

I think these students should do ______ part in keeping the class-room clean.

A．my	B．her
C．their	D．our

Answer 1

C

試題分析：句意：我認為這些學生應該盡他們的職責保持教室干凈。do one’s part盡某人的職責，one’s要跟these students保持一致，故選C。