He used short but he is tall now.A. to beB. toC. is

问题补充：

He used short, but he is tall now.

A. to beB. toC. is

答案：

解析：be used to sth习惯于某事;used to do sth过去常常做某事.句意:他过去很矮，但是现在高了。故选A。