My aunt often drops by my house ______ Sunday afternoons because I am free then.
| A．at | B．in | C．on | D．of |
He is a teacher ___________ he is Chinese.
| A．and | B．but | C．or | D．so |
—Could I please use your bike?
—. I have to go out.
| A．Yes,you can. | B．Yes,you can’t. | C．Yes,I can. | D．Sorry, you can’t. |
____ homework , most students do homework every day.
| A．To | B．As for | C．For | D．As |
Sorry, he _____ help his mother.
| A．had to | B．has | C．has to | D．have to |
Do you go to school ______ bike or _____ foot?
| A．by; by | B．on ;on | C．by; on | D．on; by |