--- 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 |
______ our teacher was ill,______ she still came to our class to teach us.
| A．Although; but | B．Though; but |
| C．Although; / | D．If; although |
—Could I borrow your camera(照相机)?
—______, but please give it back by Saturday.
| A．I’m sorry | B．Certainly not |
| C．No, thanks | D．Of course |
I won’t go to the party tomorrow ______ Lin Tao invites me.
| A．if | B．unless | C．as soon as | D．so that |
Jack ______ live with his grandparents, but he doesn’t now.
| A．used to | B．is used to |
| C．was used to | D．use to |
—Do you know if they ______ to play football with us tomorrow?
—I think they will come if they ______ free.
| A．will come; will be | B．will come; are |
| C．come; are | D．come; will be |