题目内容

They will let you use their old house _______ you keep it clean.

A. in order that
B. so that
C. on condition that
D. until

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______ the children have gone abroad to study we’ve got a lotof spare time.

A. Supposing that
B. Now that
C. Seeing that
D. In order that

He will choose to send his daughter to this kindergarten ____she doesn’t have to get up so early.

A. lest
B. as long as
C. in case
D. while

It may be three or five years _______ it is possible to test thismedicine on human patients according to scientists.

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

A company cannot operate efficiently _______ it is free from suchinterference.

A. so long as
B. so that
C. unless
D. because

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