搜题
王老师:19139051760(拨打)
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第1题

I _____ every weekend for the last few months.

A、worked
B、work
C、have worked
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第2题

The third part is the ________ results.

A、expect
B、expecting
C、expected
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第3题

The exchange of information is basic ______ business.

A、on
B、to
C、for
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第4题

As always, I am ______ about the issue.

A、concerning
B、concerned
C、concerns
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