补全对话,每空一词。 |
A: What bad weather! The wind is blowing 1 with lots of sand. You'd better not go out now. B: But there's 2 wrong with my computer. I want to ask Uncle Lin to mend it. Wow, what a strong sand storm! How 3 will it last? A: Maybe half a day. B: Do you know what causes these sandstorms? A: People have cut down too many trees. But trees can prevent the sand from moving toward the rich land and they can also keep water from 4 the earth away. B: So what can we do to stop the sandstorms? A: We can 5 more trees and protect our environment. B: I agree with you. |