Question

My grandfather would always read me a story when he came to visit us and I ___ enjoy it.

A. did use toB. used to　 C. would use to D. was used to

 

Answer 1

B

D是短语be used to doing sth，是习惯于做某事，后面的动词必须是ing形式。B是短语used to do sth，意思是过去常常做某事。