Question

【题目】—Are there any areas that you feel not ____ in the book? —Sorry．I've no idea．
A.produced
B.filled
C.referred
D.covered

Answer 1

【答案】D
【解析】句意：在这本书中你有理解的地方吗？covered有遮盖物的，引申意为不理解的。A、produced制造；生产；B、filled填充；C、referred指到；参考；D、covered覆盖；包含；故选D。