Not until World War II ______ to use new chemical techniques to purify penicillin.
| A．they managed | B．that they managed |
| C．did they manage | D．they didn’t manage |
—I’m thinking of losing weight these days.
—Oh, you_____be out of your mind. You’re 50 kilograms at the most!
| A．will | B．should | C．may | D．must |
The media can often help solve problems and draw attention _____situations _______help is needed.
| A．in; that | B．to; which | C．in; where | D．to; where |
—What should we pay more attention to if we go north in winter, Mum?
—Nothing much. Take warm clothes_________
the weather is cold.
| A．as long as | B．now that | C．if | D．in case |
—How wise of you to come round, but why?
—________that all is right.
| A．See | B．To see | C．Seeing | D．For seeing |
—Mary told me she would computer studies.
—Really? I’ll try my best to ask her to such foolish ideas.
| A．pick up; give up | B．put away; give up |
| C．give up; put away | D．give up; pick up |