One can't do extreme sports _________ he or she has had some training.
A.if
B.unless
C.once
D.since
试卷相关题目
- 1Having taken our seats, ______.
A.the professor began the lecture
B.the lecture began in no time
C.we were attracted by the lecture immediately
D.the bell announced the beginning of the lecture
开始考试点击查看答案 - 2Here is a ticket for the exhibition. Whom would you rather _____ with you, Jack or Bob?
A.go
B.have go
C.had go
D.going
开始考试点击查看答案 - 3When ____ where he was born, Kale said he was a Londoner.
A.asking
B.asked
C.being asked
D.was asked
开始考试点击查看答案 - 4The bus ____ at six, but it arrived an hour later.
A.should arrive
B.had arrived
C.should have arrived
D.must arrive
开始考试点击查看答案 - 5I could have helped the old man ______ yesterday morning.
A.did I come
B.if I came
C.had I come
D.if I should come
开始考试点击查看答案 - 6We set off _______ the Three Gorges _______ a beautiful afternoon from Fu Ling.
A.to; at
B.from; on
C.through; on
D.for; on
开始考试点击查看答案 - 7I never put anything _____ others into my bag.
A.belongs to
B.belonging to
C.is belonging to
D.is belonged to
开始考试点击查看答案 - 8His arms were sun-burnt because he ______ in the sun all day.
A.had sat
B.sat
C.is sitting
D.had been sitting
开始考试点击查看答案 - 9— Have you any letters _____? — No, thanks.
A.to be typing
B.to type
C.to be typed
D.typed
开始考试点击查看答案 - 10The soup was cold, but it was ______ an excellent meal.
A.yet
B.already
C.otherwise
D.therefore
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