When we were on a voluntary tour we to public places to collect rubbish every day (Miễn phí)

We ____ the roof for Mrs. Smith, an elderly childless woman, when it ____ with rain.

A. were mending - was pouring

B. mended - poured

C. mended - was pouring

D. were mending - poured

It is ____ that all the students in class 1OA choose to do a project on ‘Helping the needy’.

A. surprising

B. surprised

C. surprise

D. surprisingly

Volunteers become well ____ of the problems facing the world.

A. aware

B. concerned

C. helpful

D. interested

The phone was engaged when I called. Who ____ to?

A. were you talking

B. were you talked

C. did you talk

D. have you talked

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

Last Sunday, our volunteer team ____ a lot of food packages to homeless people in the flood-hit region.

A. were bringing

B. brought

C. have brought

D. had brought

I ____ Maria for the first time at the Heart-to-Heart Charity Office.

A. saw

B. was seeing

C. was seen

D. has seen