A number of high buildings have arisen ________ there was nothing a year ago bu

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A number of high buildings have arisen ________ there was nothing a year ago but ruins. [ ]
A. when
B. where
C. before
D. until

答案

举一反三

He smiled politely ________ Mary apologized for her drunken friends. [ ]
A. as
B. if
C. unless
D. though

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All the photographs in this book, ________ stated otherwise, date from the 1950s. [ ]
A. unless
B. until
C. once
D. if

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The map is one of the best tools a man has ________ he goes to a new place. [ ]
A. whenever
B. whatever
C. wherever
D. however

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I have a tight budget for the trip, so I"m not going to fly ________ the airlines lower ticket prices. [ ]
A. once
B. if
C. after
D. unless

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If you happen to get lost in the wild, you"d better stay ________ you are and wait for help. [ ]
A. why
B. where
C. who
D. what

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