_________ should not be allowed to go out at night.
| A．Twelve-years-old | B．Twelve-year-olds |
| C．Twelve year old | D．Twelve years olds |
—I find the more we study, the more difficulty we have _______ out Maths problems.
—Oh, I agree with you. Maths is more and more difficult.
| A．worked | B．work | C．works | D．working |
_____ Jack ______ Jim has been to China, but _____ of them knows much about China in fact.
| A．Either; or; both |
| B．Neither; nor; both |
| C．Not only; but also; neither |
| D．Both; and; neither |
— Have you found your lost mobile phone?
—No, I haven’t found ___________, but I bought ___________ this morning.
| A．one; that | B．that; one |
| C．it; one | D．one; it |
How can _____ man like him be recommended as _____ head of our hospital?
| A．the, / | B．a, a | C．the, the | D．a, / |
—You won the first prize in the last Physics competition once again.
—__ _. I made several mistakes.
| A．Congratulations | B．It doesn’t matter |
| C．Don’t mention it | D．You must be joking |