I always go to sleep ___________ the light on.
A．with B．in C．to D．and
It's very kind ______ you to help me with my English.
A．for B．of C．to D．about
Don’t talk to Simon like that. He is just an _______ boy.
A．eleven years old B．eleven –years – old
C．eleven- year- old D．eleven years-old
–We can use it to chat with each other on the Internet.
--Really? Will you please show me _______ it
A．how to use B．what to use
C．how can I use D．what can I use
We _____ in this pool when we were young, but now it _____ fish.
A．are used to swim; used to keep
B．are used to swimming; used to keep
C．used to swimming; is used to keep
D．used to swim; is used for keeping
I study math by ____ lots of exercises.
A．did B．doing C．do D．does
