“Is ______ you want to say？” asked the teacher.
| A．this | B．that |
| C．all that | D．that all |
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear ! She ______ a lot of difficulties !
| A．may go through | B．might go through |
| C．ought to have gone through | D．must have gone through |
The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
| A．should | B．must | C．will | D．can |
— Shall I give you a ride as you live so far away ?
— Thank you. _______.
| A．It couldn’t be better | B．Of course you can |
| C．If you like | D．It’s up to you |
— Lucy doesn’t mind lending you her dictionary.
— She _______. I’ve already borrowed one.
| A．can’t | B．mustn’t | C．needn’t | D．shouldn’t |
I was on the highway when this car went past fol. Lowed by a police car. They ______ at least 150 kilometers an hour.
| A．should have been doing | B．must have been doing |
| C．could have done | D．would have done |