—Can I walk across the road now, mum?
— No, you_______. You have to wait until the light turns green.
| A．couldn't | B．shouldn't | C．mustn't | D．needn't |
—Can you guess if they ________tomorrow?
—They will come if they ________free, I think.
| A．come; will be | B．will come; will be | C．come; are | D．will come; are |
My grandparents _________for fifty years and they are both quite healthy now.
| A．marry | B．have been married | C．are married | D．have gotten married |
—Where is Jack?
—I noticed that he ________the teacher’s office just now.
| A．went into | B．goes into | C．was going into | D．is going to |
—Don’t worry. Your uncle is coming to help you.
—________he doesn’t come?
| A．What if | B．Why not | C．What about | D．What for |
My friend’s flight had taken off _________ I got to the airport to see him off.
| A．while | B．after | C．before | D．until |