单项选择题A.It’s another possible use for seawater.B.It’s necessary for growing vegetables in hot climates.C.It’s used for producing electricity in the US.D.It makes people comfortable in hot days.
单项选择题A.The man can buy a standing-room ticket tomorrow.B.It is too late for the man to go to the concert.C.The man must wait for two hours to buy a ticket.D.People have already been standing in line for two hours.