---- Hurry up ! The bus is coming .
----- Wait a minute. Don’t cross the street_________ the traffic lights are green.
| A．since | B．after | C．while | D．until |
He saw the little girl _____ when he was on his way to a party.
| A．cried | B．cries | C．crying | D．is crying |
My grandpa is a science teacher and he _______ science.
| A．is good to | B．is good for |
| C．does good to | D．is good at |
________ book on the desk is _______ useful one.
| A．The;an | B．A;a | C．The;a | D．The;X |
The beautiful sight _____ us ______ all our problems .
| A．helps;forgets | B．help;forgets |
| C．helps;forget | D．help;forgets |
We both enjoy ___________ to _______.
| A．going partys | B．going parties |
| C．to go parties | D．to go partys |