You know a lot about Chinese history, don’t you?–Yes, I ___________ China for a long time since 1998.

If itrain tomorrow，we’ll go on a trip.

Linda, together with her parents, ______up the mess in the park at the moment.—It’s meaningful to be a volunteer. Let’s join them.

Turn___________/left/ and you’ll see the post office.

your brother swim, John?—No, he .