一轮资料资源简介:
1. ________ he comes, we won’t he able to go.
A. Without B. Unless C. Except D. Even
答:B。unless“除非,如果不”,为连词,相当于于if...not。even为副词。A和C项为介词。
2. I didn’t manage to do it ______ you had explained how.
A. until B. unless C. when D. before
答:A。若选B项主句应是虚拟句式 I wouldn’t have managed to do it if you had not explained how.
3. I had a picture taken ________ there is a tower.
A. at which B. at where C. the place where D. where
答:D。where引导的是地点状语从句。
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