The first thing        we should do is to protect the wild animals .

--Where does your uncle work, Tom ?
--He is in a hospital        he works as a doctor.

Friends are those_____ make you smile, always open their hearts to you and encourage you to succeed.

Miss Green is the only person __________ can help you with your English.

I can’t forget the time       the earthquake happened in Yushu.
A. when                  B. which                 C. where

I hate people _________don’t help others when they are in trouble.

Gina loves singers _______ write their own music.
A. which                B. who                C. has worked

They hardly watch TV on school nights, _____?

–Do you know the boy ___ is standing under the tree?
-- Yes, he is my friend, Peter.

I’ ll never forget the day_____ the great scientist came to our school and gave us a speech.