Smoking too much will your health greatly.
| A．affect | B．effect | C．effort | D．comfort |
Better _____ all the lights are turned off before you leave the classroom.
| A．to be sure | B．to make sure | C．be sure | D．make sure |
He lives in a _____ city, I mean in a city that is ______ .
| A．faraway… far away | B．faraway … faraway |
| C．far away … far away | D．far away … faraway |
4. It is reported that China’s ______ first Mars probe Yinghuo-1 will be launched with the help of _____ Russian launch vehicle in Oct. 2009. (China Daily)
| A．不填;a | B．the; a | C．不填; the | D．the; the |
3.He is teaching in his hometown now, but he________ in a hospital for 10 years.
| A．worked | B．has worked | C．had worked | D．has been working |
_____ more attention, the trees could have grown better.
| A．Given | B．To give | C．Giving | D．Having give |