We arrived on the platform just as the train was .
| A．pulling up | B．pulling down | C．pulling out | D．pulling into |
I can’t _____ his failure.It is unbelievable.
| A．seek for | B．bring up | C．get away with | D．account for |
--- Who left the door open?
--- Oh, sorry. I _____ the door.
| A．ought to lock | B．should lock | C．ought to have locked | D．could lock |
.The traffic problems we are looking forward to ______ solved should have attracted the government’s attention.
| A．see | B．seen | C．be seen | D．seeing |
.He seemed to be looking for the words ____ he could express his idea.
| A．for which | B．with which | C．in whom | D．in that |
.A modern city has been set up in ____ was a wasteland ten years ago.
| A．what | B．which | C．that | D．where |