—Sam,let'sgoandplaybasketball. —Notnow.I        Dickwi...

问题详情：

 —Sam, let's go and play basketball.

 —Not now. I         Dick with his English.

      A. help              B. helped           C. am helping      D. have helped

【回答】

C

知识点：动词时态

题型：选择题