–I’m going to travel to America. Would you consider telling me about your experiences there?
---____. Let’s discuss it over dinner.
| A．That’s all right. | B．By all means. |
| C．Go ahead. | D．It just depends. |
The sons and daughters said they never fully appreciated their parents _________ it was too late to tell them.
| A．as | B．that |
| C．until | D．When |
Why not stay at home _________ the road is so slippery after the heavy snow?
A.since thatB. after that
B.then thatD. now that
Many people believe we are heading for environmental disaster _________ we basically change the way we live.
| A．but | B．although |
| C．unless | D．Once |
He is at least as tall as his brother, if not _________.
| A．tall | B．taller |
| C．so tall | D．the taller |
—Please don't make a noise ！
— _________.I will be as quiet as a mouse.
| A．Yes, I won't | B．No, I won't |
| C．No, I will | D．Yes, I will |