THERE WERE TOO MANY BOOKS ON THE SHELVES THAT I DIDN’T KNOW WHICH ON...

Câu 15: There were too many books on the shelves that I didn’t know which one to choose.

A. too

B. on

C. to choose

D. were

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following

questions from 16 to 29.