I often help my mother _______ clothes.
| A．wash | B．washing | C．washes | D．washed |
—I went to Wuhan zoo on National Day．What about you? —_______.
| A．So do I | B．So was I |
| C．I did so | D．So did I |
—What’s the trouble?
—They said I should not be allowed ____ here．They don’t allow ____ in the hospital.
| A．smoking, to smoke | B．to smoke, smoke |
| C．to smoke, smoking | D．smoking, to smoke |
—My grandfather _______coffee, but now he _______ tea．
— That’s good．You know tea is good for our health.
| A．used to drinking, drinks |
| B．used to drink, is used to drinking |
| C．is used to drinking, used to drink |
| D．is used to drink, is drinking |
—What are you _____? — I’m afraid I can’t pass the test.
| A．worry | B．worry about |
| C．worried | D．worried about |
China _______ a lot in the last few years．Now it has become one of the strongest _______ in the world.
| A．changes, countries | B．changed, country |
| C．has changed, countries | D．had changed, countries |