Question

Meng Peij ie，an ordinary girl who was among the 10 people awarded the title of “Touching China 2011”，must be both optimistic and strong-minded. Otherwise, she _______  her disabled adoptive mother for 12 years.

1. A.
   mustn't have looked after
2. B.
   can't have looked after
3. C.
   couldn't have been looking after
4. D.
   shouldn't have looked after

Answer 1

C
本題考查虛擬語(yǔ)氣。結(jié)合后半句句意“否則，她不可能照顧她殘疾的養(yǎng)母12年”可知此處是與過去相反的虛擬語(yǔ)氣。