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科目： 來源：同步題 題型：單選題

He was told that it would be at least three more months _____ he could recover and return to work.

 [     ]

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

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科目： 來源：同步題 題型：單選題

It's quite a time _____ Liu Xiang was injured in the foot, but we're sure it won't be long _____ he returns to
the track.

[     ]

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

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科目： 來源：同步題 題型：單選題

A computer is so useful a machine___ we can use everywhere.

[     ]

A. that
B. which
C. as
D. what

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科目： 來源：同步題 題型：單選題

John thinks it won't be long _____ he is ready for his new job.

[     ]

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

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科目： 來源：同步題 題型：單選題

— Tom is a sunny man.
— Yeah. ______ he is poor, he looks happy.

[      ]

A. As if
B. In order that
C. Even if
D. So that

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科目： 來源：同步題 題型：單選題

There is a widespread belief among the science world ____ we keep on _____  the earth as we are doing today,
the exist ence of us humans on this planet will be out of the question in some years yet to come.
[     ]
A. if; polluting
B. if; to pollute
C. that if; to pollute
D. that if; polluting

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科目： 來源：同步題 題型：單選題

It is partly ______ the summer day is longer that everything has a larger time to warm up.

[     ]

A. for
B. that
C. the reason
D. because

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科目： 來源：同步題 題型：單選題

_____ you drive carefully, you will be very safe.

[     ]

A. As if
B. As long as
C. Even if
D. In case

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科目： 來源：同步題 題型：單選題

_____we are not attacked by nuclear weapons, we promise that under no circumstances _____ use the
bomb first but we reserve the right to use it for counter-attack when necessary.

[      ] 

A. As long as; we shall
B. If; shall we
C. So long as ; shall we
D. Even if; we shall

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科目： 來源：同步題 題型：單選題

You may use room as you like ____ you clean it up afterwards.

[     ]

A. so far as
B. so long as
C. in case
D. even if

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