The water will be polluted unless some measures _____.
| A．will be taken | B．are being taken | C．are taken | D．were taken |
So difficult _____ it to adjust to an English-speaking environment that he determined to learn English hard.
| A．he has felt | B．has he felt | C．he did feel | D．did he feel |
— It’s a lovely day, isn’t it?
— Yes. I love ______ when the weather is like this. Why don’t we sit outside and have our lunch?
| A．this | B．that | C．it | D．one |
Although Jane agrees with me on most points, there was one on which she was unwilling to ____.
| A．give out | B．give in | C．give away | D．give off |
I’m sure that your letter will get _______attention. They know you’re waiting for it.
| A．continued | B．immediate | C．careful | D．General |
As the visiting prime minister puts it, China’s influence in the world will continue to strengthen______ its economy grows.
| A．although | B．until | C．as | D．Before |