He always dreams of ______ a chance for him to go abroad for further study．

am very worried because my son ________ most of his spare time ________ playing games on the computer.

The news _____ them, they decided to go out for a celebration.

Make sure that your speech is _________ and to the point, so that the audience will not get bored just because they have to listen to you talking for a long time.

If I’m free,I’d like to spend ______holiday in Dunhuang.