______ will the discussion last？
______ we reach an agreement．（ ）
A．How long； Not untilB．When； Not until
C．How long，UntilD．When，Until
There’re too many clothes in the shop. I really can’t decide .
| A．which to buy coat |
| B．to buy which coat |
| C．which coat should I buy |
| D．which coat to buy |
--Look! Mum, this pair of gloves worn out. I need a new pair. –OK!
| A．is | B．are |
| C．be | D．were |
The teacher asked us_______ the question .
| A．answer | B．answers |
| C．answering | D．to answer |
-Why are you in such a hurry, Mike?
-There_______ an NBA basketball game in ten minutes.
| A．will be |
| B．will have |
| C．is going to have |
| D．are going to be |
He tried to make himself ________ by his students, but he failed.
| A．understand | B．understood |
| C．understands | D．understanding |