People ________do exercise every day have a better chance of staying healthy than those ________don’t.
| A．who; / | B．/; who |
| C．who; who | D．/; / |
— Did your sister pass the exam?
— She failed and is in low spirits.
— I'm sorry for her.
— ______.
| A．Thank you | B．You're welcome | C．I would think so | D．Never mind |
He is only too ready to help others, seldom, ______, refusing them when they turn to him.
| A．if never | B．if ever | C．if not | D．if any |
— How’s your tour around the North Lake? Is it beautiful?
— It ______ be, but it is now heavily polluted.
| A．will | B．would | C．should | D．must |
The house could fall down soon if no one ______ some quick repair work.
| A．does | B．has done | C．is doing | D．had done |
Right now you can pay ______ you had to several years ago for a cool computer.
| A．one third as much as | B．as one third much as |
| C．as much as one third | D．as much one third as |