—Did you know ______ just now?
—Their plane didn't take off on time because of the thick fog.
| A．what did they happen | B．what happened to them |
| C．what they happened | D．what they have happened |
The traffic sign “
” means “__________”.
A. go B. stop C. danger
—Would you like to go with me?
—I’d like to, _________ you don’t want to go alone.
A. until B.ifC.after
—Would you help me plan a trip?
—_________________
A. You bet! B. Yes, I can. C. Not at all.
She couldn’t help __________ when she heard the news.
A. cry B. to cry C. crying
— How much did the ticket ___________?
— About three hundred yuan.
A. spend B. pay C. cost