Question

【题目】It's ten o'clock. I ________ go to the party now.

A. am B. do C. have to

Answer 1

【答案】C

【解析】句意：10点了。现在我必须去晚会了。A.be动词，后接动词ing；B.做，后面不直接加动词；C.必须、不得不，后接动词原形；故选C。