—Shall we play football this afternoon? --_______
| A．Yes, that’s right. | B．OK, I’ll be free then. |
| C．What’s the matter? | D．Of course, you may. |
Aunt Lucy will tell us something about her trip to Australia when she______back.
| A．came | B．comes |
| C．would come | D．will come |
John didn’t give up looking for a job __________ he got an offer from a German company.
| A．until | B．since |
| C．because | D．if |
— Would you like to go to the cartoon show with me?
— It sounds like fun, ______I’m too busy.
| A．so | B．for |
| C．or | D．but |
All passengers______go through safety check before they take a plane.
| A．can | B．may |
| C．must | D．ought |
_____ carefully, Michael! There’s a school ahead.
| A．Drive | B．To drive |
| C．Drove | D．Driving |