難度：★    考點：狀語從句

　　1. ________ I was in he US, I made a lot of American friends.

　　A. While  B. Although  C. Unless  D. Until

　　2. What would happen if he ______ back home?

　　A. go                    B. goes                    C. went

　　3. If a polar bear_____, it _____fish from the water.

　　A. will be hungry; catches             B. is hungry; will catch

　　C. is going to be hungry; catches        D. is hungry; won't catch

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