Which one is , football or basketball

It’s high time they ________ to reduce the cost of production.

On farewell party the foreign teacher gratefully_____ all the helps from all the school.

(2013·陕西宝鸡二检)The course about Chinese food attracts over 100 students per year, ________ up to half are from overseas.

One minute she burst into _____, and the next she burst out _____. We just couldn’t catch her mood at any moment.