题目内容

Our teacher ____ in our school for 29 years and he ____ here when he was 23 years old.
A．has taught has comeB．taught , comes
C．taught , cameD．has taught, came
D
考查时态。 前半句中有“for 29 years”故第一空用现在完成时，而后半句中有when 引导的时间状语，因此第二空用一般过去时came.
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