We haven’t heard from Bill ______________ he left here.
| A．when | B．before | C．since | D．while |
---I will enter a speech competition next week.
---___________
| A．Good luck! | B．Well done! |
| C．Thank you! | D．The same to you! |
---Sally, I went to the concert last night. How big the symphony hall is!
---So it is. It is ___________ to hold more than one thousand people.
| A．big enough | B．enough big |
| C．too big | D．so big that |
---Could you please tell me________________?
---Yes. There is one on Center Street.
| A．where can I buy some stamps |
| B．when you will take your vacation |
| C．when was the telephone invented |
| D．if there are any good restaurants around here |
Don’t ________too late, or you’ll be sleepy in class tomorrow.
| A． put up | B．stay up |
| C．take up | D．get up |
---I didn’t hear you come in just now.
--- That’s good. We tried ________ any noise, for you were sleeping.
| A．not make | B．not to make |
| C．to make | D．Making |