(   ) 5. We are supposed to       a solution to stop people from looking down at their mobile phones while driving cars.

   A. come up with   B. come from   C. come out   D. come true

(   ) 4. —I'm sorry, sir. I can't fin?ish the work on time.

―Never mind.      ，the work is quite difficult.

   A. At least   B. For instance

   C.  After all   D. First of all

(   ) 3. This place        a factory but now it is a park. 

   A. used to being   B. used to be   C. is used to   D. using to be

(   ) 2. —What a good        you've given me！Thanks a lot.

―My pleasure.

   A. information   B. news

   C.  suggestion   D. advice

(   ) 1. You are         to type quickly when talking to each other on QQ so the other person doesn't get bored.

   A. suggested   B. supported

   C.  taught   D. supposed

exchange,suggestions,chalk,hit,behave

1.After class,students should clean the       off the blackboard.

2.In China,it's impolite to use your chopsticks to      an empty bowl.

3.I'm having a great time on my student        program in France.

4.My biggest challenge is learning how to       at the dinner table.

5.Let me give you some      and advice about Chinese customs.

5.Please tell me how I can behave well.(改为同义句)

Please tell me how                 well.

4.We expect him to wear a suit and tie if he goes to the party.(改为同义句)

He's                     a suit and tie if he goes to the party.

3.We make plans to do something exciting.(改为同义句)

We               do something exciting.

2.He left the room. He didn't say anything.(合并为一句) 

He left the room                  anything.