Teenagers are not allowed to stay out late _ school nights.
| A．on | B．in | C．at | D．by |
Some students in Shanghaie-bags for several months.
| A．have | B．have had | C．had | D．will have |
May I have a talk with you, sir? I've gotimportant to tell you.
| A．nothing | B．anything | C．something | D．everything |
－I really hope to 
get in touch with Tony.[
－Sorry, I don’t kn
ow ___________.
| A．why he loves China | B．how he returned to Canada |
| C．what his phone number is | D．where be studied Chinese |
We can do a lot to stay healthy. __________, we should eat a balanced(平衡的) diet.
| A．At a time | B．In fact | C．First of all | D．All together |
When you have difficulty, do remember to _________. Two heads are better than one.
| A．make a decision | B．give up | C．ask for help | D．give advice |