1.—How long do you think it will be_______ China sends a man
1.—How long do you think it will be_______ China sends a manned spaceship to the moon?
—Perhaos two or three years.
A.when B.until C.that D.before
2.Dolly the sheep was the first mammal_____successfully from an adult cell in the world.
A.cloned B.being C.was cloned D.to be cloned
说下理由,
—Perhaos two or three years.
A.when B.until C.that D.before
2.Dolly the sheep was the first mammal_____successfully from an adult cell in the world.
A.cloned B.being C.was cloned D.to be cloned
说下理由,
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D.
这是一个it will be +(time) +before （sth.)的句型.意思是在某件事发生之前有多少时间.
比如.It won't be long before I see you again.
句中的do you think是插入语,可忽略,就能看出句型了.
D
这是the first to do(to be done)的句型.
比如I am alwawys the first to arrive at school and the last to leave!
不久前学的.例句也是老师给的.希望对你有所帮助
这是一个it will be +(time) +before （sth.)的句型.意思是在某件事发生之前有多少时间.
比如.It won't be long before I see you again.
句中的do you think是插入语,可忽略,就能看出句型了.
D
这是the first to do(to be done)的句型.
比如I am alwawys the first to arrive at school and the last to leave!
不久前学的.例句也是老师给的.希望对你有所帮助
1年前
6
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