______________that no one wants to __________ it

It’s required that the students______ mobile phones in their school, so seldom ______ them using one.

oblem referred to at the meeting,if___________in time , will have a bad effect on the environment.

People are advised to lay particular ____ the need of a balanced diet and proper exercise.

Could you tell me how to improve spoken English —Well, just take every chance to practise ______and don’t be shy.