It _______ have been Tom that parked the car here, as he is the only one with a car.
| A．may | B．can | C．must | D．should |
We’ve turned out large quantities of cars. This yearwe’ve produced thirty thousand ones.
| A．only | B．just | C．alone | D．simply |
--- May I speak to your manager Mr. Williams at five o’clock tonight?
--- I’m sorry. Mr. Williams to a conference long before then.
| A．will have gone | B．had gone | C．would have gone | D．has gone |
I don’t like to travel to big cities, because to me, one city is much like .
| A．either | B．the other | C．others | D．another |
–-I feel down now. All my work goes for nothing.
---___________. That’s life.
| A．You are cut out for it. | B．It happens | C．No problem | D．That’s it |
The room is in a terrible mess; it ________have been cleaned.
| A．can’t | B．mustn’t | C．shouldn’t | D．wouldn’t |