---- What are you doing here now?
---- I’m thinking _________ chatting with my good friends.
| A．how fun to | B．how to fun with | C．what to have fun | D．how to have fun |
---- Why were you late for school again this morning?
---I was about to go shopping _________ it began to rain.
| A．while | B．as |
| C．when | D．though |
----Did you go to Jack’s birthday party?
---No, I____.
| A． am not invited | B．wasn’t invited |
| C．haven’t invited | D．didn’t invite |
--- Did I lock the door when I went out?
--- Yes, you did. I saw you _____ it.
| A．locking | B．lock |
| C．to lock | D．locked |
---You have to work very hard in your job, don’t you?
----Yes, but I don’t mind that. I _____ hard.
| A．used to work | B．am used to work |
| C．am used work | D．am used to working |
--- I don’t know ______ my telephone number.
--- Through a friend of mine.
| A．what did you get to know | B．what you got to know |
| C．how did you get to know | D．how you got to know |