江苏省2014届高三英语（牛津版）一轮复习攻略训练：单项选择（6）
二 单项选择
21. Don’t fall for the false advertisement. In the beginning, you may lose some weight, but after a while you will end up back ________ you started.
A. as if B. when C. even if D. where
22．No one can walk the wire in the air without a bit of fear unless ____ very young．
A．having trained B. trained C. to be trained D. being trained
23．—Several hotels in this area are closing down．
—That's because tourism itself ____ since last year．
A．is declining B. declined C. had declined D. has been declining[
24. What could have happened, ________, as far as the river bank?
A. as Bob walked farther B. if Bob should walk farther
C. had Bob walked farther D. if Bob walked farther
