超星 - 状语从句测试题 - 查题吧

单选题

I won’t call you, ________ something unexpected happens.

A. unless
B. whether
C. because
D. while

单选题

_______ he had not hurt his leg, John would have won the race.

A. If
B. Since
C. Though
D. When

单选题

Small sailboats can easily turn over in the water ______ they are not managed carefully.

A. though
B. before
C. until
D. if

单选题

The field research will take Joan and Paul about five months; it will be a long time _____ we meet them again.

A. after
B. before
C. since
D. when

单选题

Leave your key with a neighbor ___ you lock yourself out one day.

A. ever since
B. even if
C. soon after
D. in case

单选题

You will be successful in the interview you have confidence.

A. before
B. once
C. until
D. though

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