I like the MP3,        it’s too expensive.
A. but         B. so          C. and

——Can I eat the cake，Mum?
——Yes，you can．_________you must wash your hands first．

Li Lei is only 8 years old, _____ he can speak English very well.

      John was walking to school, he saw a cat in a tree.

You should go over your test paper _____ you hand it in.

--Would you like to ride bicycles with us tomorrow?
--Yes, I’ll go_____ I’m free.
A. because       B. when      C. if

Michael was watching TV_____ his father came in.
A. when        B. while      C. as soon as

Lily feels very excited _____they will have a trip to Mount Wuyi this Sunday.
A. even though        B. because      C. because of

—Excuse me. How can I get to the library?
—walk along this street_______ you see the traffic lights. You will find it on your left.

—The classroom is ____ clean ____ it was yesterday.
— Sorry, I forget to clean it.