{01}Tim is in good shape physically _____ he doesn"t get much exercise. A.if B.even though C.unless D.as long as 解析: 本题选B。
{02}The girl had hardly rung the bell _____ the door was opened suddenly, and her friend rushed out to greet her. A.before B.until C.as D.since 解析: 本题选A。
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