In America, _____ car is _____ popular means of transportation.
| A．the; a | B．a; the | C．the; the | D．the; / |
Listen to the laughter, the girls _______themselves.
| A．may enjoying | B．can be enjoying |
| C．must have enjoyed | D．must be enjoying |
The weather turned out to be fine yesterday. You ________the trouble to carry your raincoat with you.
| A．should have taken | B．could have taken |
| C．needn’t have taken | D．mustn’t have taken |
Then you usually lie there just ______ the ceiling, thinking about everything that could go wrong.
| A．glancing at | B．watching at |
| C．glaring at | D．staring at |
---Do you mind my taking the books away?
---________.
| A．Certainly, please do | B．No, go ahead |
| C．Yes, not at all | D．No, please don’t |
—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
| A．can; must | B．can; may |
| C．must; can | D．may; must |