If you go on thin ice ,you risk ______through.

Try to spend your time just on the things you find ______.

The workers had been on strike for several weeks. At last they had their pay _______.

_______ your letter, I am pleased to tell you that you are to receive the answer by the end of this week.

Yao Ming is easily _______ in the crowd because he is very tall.

The teacher called Tom to his office because he was caught       in the exam.

—— What are you going to do this weekend?
—— Weather      , I’ll go hiking with my family.

Dad, I think a house where we’ve been living for ages needs       .

______almost one hundred jin, the stone was moved by him alone. 

Maria is constantly making efforts, she deserves          the goal of entering the key university.