Why did you _______ the wall yesterday?

问题描述:

Why did you _______ the wall yesterday?
A.have painted B.have paint C.have to paint D.have painting

选C,因为题干中有时间词yesterday,所以用一般过去时,有did就够了,所以have不做完成时标志,所以只能跟to搭配做have to短语译为“不得不”.