19．A．when B．because C．if D．though 【查看更多】

 

題目列表(包括答案和解析)

The red suitcase is expensive ______it’s made of leather.

A．when         B．if             C．because          D．though

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Our math teacher is very kind ______ he looks very serious.

A．because          B．though            C．if                D．when

 

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Jack spends much money on books ________ he is not so rich.

A．though           B．when             C．if                D．because

 

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The red suitcase is expensive _________ it's made of leather.

[　　]

A．when

B．if

C．because

D．though

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The red suitcase is expensive ________ it's made of leather．

[　　]

A．when

B．if

C．because

D．though

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