We are not supposed basketball on Sundays.A. to playB. playingC. with playingD. played

问题补充：

We are not supposed basketball on Sundays.

A. to play

B. playing

C. with playing

D. played

答案：

(答案→)A. to play

B. playing

C. with playing

D. played

解析：句意；你不应该在周日去打篮球。短语be supposed to do sth应该做某事，被期望做某事，不定式做宾语表示具体的将要进行的动作，结合语境可知选A。