Question

I ________ at the station half an hour ago, but the train ________ yet．

A. arrive;didn’t come
B. was arriving;hadn’t come
C. arrived;hasn’t come
D. had arrived;didn’t come

Answer 1

答案C
半小时以前表明是发生在过去的动作，第一空要用一般过去时；但是到现在火车还没来，故第二空用现在完成时。