Do you know if Mr. Wu ______ to our school tomorrow? ———-I’ve no idea. If he ______, everyone ______ very happy.

Once a year, people take part in “_______ Lights” activity to help save energy.

Does it often rain in Jinan? -No,was little rain in Jinan last winter.

Parents and teachers should help teenagers control their use of computer games ______be controlled by themselves.

She was afraid _____ the dog in case it became dangerous .