资源介绍：客观题和主观题均有解析。

21. There was ______ time when everything to do with ______nature could keep Anne spellbound.
A. a, the B. the, a C. a, / D. the , the
【答案】C
【解析】试题分祈：考査冠词：句意：有一段时间只要是与自然有关的事情都会让安妮入迷。第一个空用a，表示一段时间。第二空不填，因为nature是抽象名词，选C。
【考点】冠词的辨析
22.—Kevin, you look worried. Anything wrong ?
—Well, I ______ a test and I’m waiting for the result.
A. will take B. had taken C. took D. take
【答案】C