Science is _____ difficult for some students ____ learn, so many of them don’t like it.
| A．enough, to | B．too, to |
| C．so, to | D．much , to |
He is finishing _____ a funny story. And he is thinking about _____ to Beijing for a vacation.
| A．to write, going | B．writing, to go | C．writing, going | D．to write, to go |
David has a stomachache. _____ .
| A．He shouldn’t go to the hospital. |
| B．He shouldn’t eat anything for 24 hours |
| C．He shouldn’t drink hot water |
| D．He shouldn’t have a rest |
Mr. Brown is 70 this year. Although he is very old, ____ he works very hard.
| A．and | B．but | C．so | D．/ |
–How often do you wash your hair?
| A．One day | B．Twice | C．Twice a week | D．Two times a day |
Jim often goes to school _____ bike. But today he goes to school _____ the school bus.
| A．on, by | B．by, by | C．by, on | D．on, on |