MODULE 12- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân

Modern zoos are very different from zoos which ________ fifty years ago. A. was built B. was building C. to be built D. building

14/50

Modern zoos are very different from zoos which ________ fifty years ago.

was built

was building

to be built

building

Giải thích

Chọn đáp án A