Question

— You look tired.
— Yes. I ___ non-stop until 8 o’clock this morning.

A．had worked

B．work

C．have worked

D．was working

Answer 1

A

考查时态.句意:你看起来很累.——是的。我一直不停的工作到今天早上八点钟。可知句子描述的是过去发生已经完成的动作，故用过去完成时态。选A。