问题

Why do you do volunteer work in the North—West— I_____ to improve the lives of the children there through my efforts.

A:was trying
B:have tried
C:am trying
D:tried;

正确答案是：

同类题型

Of all the students, she looks ______.

He smiled politely ______ Mary apologized forher drunken friends

An important report about English study _____ in the Worker’s Palace next week. Can you come with me—Sure, I’d love to.

Mum, I can’t see any point in studying hard.—Come on, dear! Years of hard work will surely in your future career.

Is it the book that ________ people of allages ______ became the best-seller last year