Would you mind _______ in the classroom—Sorry, I won’t do that again.

15．We know it is hard to make such a decision____he has just built up the team for a year and the project is going through the important stage now

We must work hard and make _______continuous progress so that we can make _______great contribution to ourcountry in the future.

There ________ two basketball matches this Saturday.

It took us one year ________ the bridge.