Charlie ______ be really difficult at times even though he’s a nice person in general.
| A．shall | B．should | C．can | D．must |
He doesn’t plan to go back to his home________he makes a fortune in Hong Kong.
| A．while | B．since |
| C．or | D．until |
—I am dead tired.I can’t walk farther，Tom.
—________，John.You can do it.
| A．So what | B．Congratulations |
| C．Cheer up | D．Go ahead |
People hope that measures will be taken to________house prices rising.
| A．keep | B．prevent |
| C．protect | D．support |
Has some bad thing happened to her？It’s________her to drink so much.
| A．like | B．dislike |
| C．unlike | D．alike |
I admire Stephen Hawking greatly，whose________about black holes has a great effect on astronomy.
| A．theory | B．practice |
| C．way | D．method |