Question

Nobody told us _____

1. A.
   what to do it
2. B.
   how to do
3. C.
   where to do
4. D.
   when to do it

Answer 1

D
考查疑問(wèn)詞+不定式的用法。What作do的賓語(yǔ)，it多余，排除A；B、C兩項(xiàng)缺少賓語(yǔ)；D項(xiàng)不缺賓語(yǔ)。句意“沒(méi)有人告訴我們什么時(shí)候做這件事�！惫蔬xD。