There’s only one day to go. You _____ finish yourschoolwork by tomorrow.

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

I will go out for a walk if it _______ tomorrow.

Living in the central Australian desert has its problems,______ obtaining water is not the least.

They looked very excited　　　　they had won the football game.