—The classroom is ____ clean ____ it was yesterday.
— Sorry, I forget to clean it.
| A．as; as | B．so; as | C．not so; as | D．more; than |
I was just falling asleep ____ there was a loud knock at the door.
| A．while | B．when | C．until | D．as soon as |
----Can you tell me if he ________ ?
----If he _________, I will call you.
| A．comes, comes | B．will come, comes |
| C．comes, will come | D．will come, will come |
There are many shops on ________ side of the street.
| A．both | B．every | C．each | D．each of |
The policeman warned the driver _______too fast. It was very dangerous.
| A．to drive | B．not to drive | C．driving | D．not driving |