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国家开放大学英语语法
If Peter ___________to the office tomorrow, tell him the news please.
A.come
B.comes
C.came
D.will come
Generally, snakes won’t attack humans________ they are threatened with danger.
A.if
B.since
C.unless
D.while
I can’t finish the work in time ___________ you help me translate the texts.
A.unless
B.if
C.where
D.but
If Jack ____ to the office tomorrow, give him the letter please.
A.come
B.comes
C.came
D.coming
If it ____tomorrow, we won.t go for a picnic.
A.will rain
B.should rain
C.rains
D.rained
It takes at least five years to ten years_____ it is possible to test this medicine on human patients.
A.before
B.since
C.after
D.when
_______I admit that she has shortcomings, I still like her.
A.When
B.As
C.While
D.Once
The big fire lasted as long as 24 hours _______ it was brought under control.
A.after
B.before
C.since
D.while
George applied for the position three times __________he finally got it.
A.before
B.until
C.when
D.after
When George was a little boy in primary school, he often _______ to school on foot.
A.goes
B.went
C.go
D.will go
__________it is very late now, the researchers are still working in the lab.
A.As
B.When
C.If
D.Although
Childish __ she may be, she is kind and friendly.
A. if
B.although
C.as
D.however
Although it is raining hard _____
A.Tom still wants to go out
B.and Tom still wants to go out
C.that Tom still wants to go out
D.but Tom still wants to go out
He was _____ drunk that he could hardly stand.
A.ever
B.only
C.such
D.so
It’s such a difficult problem _______ no one can work it out.
A.as
B.that
C.so
D.thus
A.come
B.comes
C.came
D.will come
Generally, snakes won’t attack humans________ they are threatened with danger.
A.if
B.since
C.unless
D.while
I can’t finish the work in time ___________ you help me translate the texts.
A.unless
B.if
C.where
D.but
If Jack ____ to the office tomorrow, give him the letter please.
A.come
B.comes
C.came
D.coming
If it ____tomorrow, we won.t go for a picnic.
A.will rain
B.should rain
C.rains
D.rained
It takes at least five years to ten years_____ it is possible to test this medicine on human patients.
A.before
B.since
C.after
D.when
_______I admit that she has shortcomings, I still like her.
A.When
B.As
C.While
D.Once
The big fire lasted as long as 24 hours _______ it was brought under control.
A.after
B.before
C.since
D.while
George applied for the position three times __________he finally got it.
A.before
B.until
C.when
D.after
When George was a little boy in primary school, he often _______ to school on foot.
A.goes
B.went
C.go
D.will go
__________it is very late now, the researchers are still working in the lab.
A.As
B.When
C.If
D.Although
Childish __ she may be, she is kind and friendly.
A. if
B.although
C.as
D.however
Although it is raining hard _____
A.Tom still wants to go out
B.and Tom still wants to go out
C.that Tom still wants to go out
D.but Tom still wants to go out
He was _____ drunk that he could hardly stand.
A.ever
B.only
C.such
D.so
It’s such a difficult problem _______ no one can work it out.
A.as
B.that
C.so
D.thus