18.You have failed two tests.You’d better start working harder you won’t pass the course.A.and B.so C.but D.or 查看更多

 

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You have failed two tests.You’d better start working harder, ________ you won’t pass the course.

[  ]
A.

and

B.

so

C.

but

D.

or

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You have failed two tests.You’d better start working harder, ________ you won’t pass the course.

[  ]
A.

and

B.

so

C.

but

D.

or

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You have failed two tests.You’d better start working harder, ________ you won’t pass the course.

[  ]

A.and

B.so

C.but

D.or

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You have failed two tests.You’d better start working harder, ________ you won’t pass the course.

[  ]

A.and

B.so

C.but

D.or

查看答案和解析>>

You have failed two tests. You’d better start working harder, ____you won’t pass the course.

A.and   B. so   C. but      D. or

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