As a doctor, I _______ that I will be kind to my patients, love them and do my best to save their lives. That is my promise.
| A．assure | B．predict |
| C．purchase | D．guarantee |
Lily _____ a book about China last month but I don’t know whether she has finished it.
| A．wrote | B．had written | C．is writing | D．was writing |
I first met Lisa three years ago. She _____ at a radio shop at that time.
| A．has worked | B．was working | C．had been working | D．had worked |
I don’t work here; I _____ until a new secretary arrives.
| A．am just helping out | B．just help out |
| C．have just helped out | D．will just help out |
—I’m sorry to keep you waiting.
—Oh, not at all. I _____ here only a few minutes.
| A．am | B．was | C．have been | D．will be |
—Who is Clarke?
—_____ him yet? I saw you shaking hands with him at the meeting.
| A．Haven’t you met | B．Hadn’t you met |
| C．Didn’t you meet | D．Don’t you meet |