—____ the workers are very tired, _____they keep on working.
— They are great. We must learn from them.
| A．Because; / | B．Though; / | C．Because; so | D．Though; but |
Herlry________be at home because he phoned me from the farm just now．
| A．mustn’t |
| B．might not |
| C．isn’t able to |
| D．can’t |
He is so good at playing chess that heother players andthe match at last.
| A．beat; beat | B．beat; won |
| C．won; beat | D．won; won |
The government is trying to makepossible for more students to get an education.
| A．that | B．it | C．this | D．them |
--- Where do you want to go during your summer vacation?
--- I can't decidenow.
| A．visit which place | B．to visit which place |
| C．which place to visit | D．which place should I visit |
When they saw their teacherinto the classroom, they stoppedat once.
| A．walk; to talk | B．walking; to talk |
| C．to walk; talking | D．walking; talking |