—Bob, please tell me .—In South Hill School.
—Visitors need to know all the travel routes to Paris, ______?—Sure. But The trip has not arranged.A. do they B. need they C. don't they D needn't they
_____of the money will go to the Red Cross to help those who need help.
You’d better try different ways you can think of maths problems. It’s good for you to learn maths well.
Can you make sure ________ he will come here today, Linda?
—What should we do to prevent H7N9 bird flu?—We must from crowded places.