An exhibition of paintings _____ at the museum next week.A. are to be heldB. is to be held

问题描述:

An exhibition of paintings _____ at the museum next week.A. are to be heldB. is to be held
C. are holding D. will be held 麻烦给出理由

D
首先 next week 就表示是将来时态
所以只能C和D C也可以是因为 现在进行时有时候可以表示将来的意思
但是主语是An exhibition是单数 所以选D
还有个被动语态的问题