—Is this ________ key, Tom? —No, that one is ________.
People overweight need more water than thin people .
—I want to know ________ I can take the No. 101 bus because I need to visit my sick friend in Ganzhou.—Across from the bookstore.
— I can’t decide __________or not I should encourage my son to be a volunteer.— Why not? It will make him more helpful.
---I seem to be lost. Could you tell me _____?---Sure. You can take the No.3 bus to get there.
--- What did Mike say?---- He said ______.