—I don’t know how to deal with it. --Well. I recommend that you ______ some professional advice.

He threw away all the ______ cigarettes, _______ to give up smoking for the sake of his health.

You don’t want your parents to critisize you_______ you stop wearing long hair at school.

 The dam will generate electricity _____ about 40 million tons of coal without causing so much air pollution.

Encourage your children to try new things but try not to ______them too hard.