题目内容

—Have you known Dr. Jackson for a long time?
—Yes，since she ________ the Chinese  Society.  
A．has joinedB．joins
C．had joinedD．joined
D
答案　D　[考查时态。主句用现在完成时，since引导的从句用一般过去时。]
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A．have been goingB．have gone
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—Yes. I________his doing it another way, but without
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A．was suggestingB．will suggest
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