211. I had no sooner got back to the kitchen ________ the door-bell rang loud enough to wake the dead.
A. when B. than C. as D. while
212. I criticized him, you know, not ________ I hate him but ________ I love him.
A. because; because B. because; for
C. for; because D. for; for
213. ________ he studies hard, he will never pass the examination.
A. If B. Unless C. Even if D. Even though
214. She worked hard ________ everything would be ready by the time he came back.
A. since B. so that C. as if D. unless
215. He waited ________ the volcano became quiet and he was able to return two days later.
A. when B. before C. as D. until
211-215 BABBD
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