He used to _______in the sun ,but now he is used to ______at night.
Lin looked at _______ passengers for help.
The boy was _________ jeans and a very smart jacket.
The train ______ Beijing is going to set off.
A large number of children ________ standing outside the office when I got there. The number of the children _____ 2,500.
_______ a medicine box under her arm , Miss Zhao hurried to look after the man.