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B. unless C. will go D. have gone ( ) 8. It will be hard for us to get up in the morning if we _____ to bed too late. A. go B. went C. will go D. have gone ( ) 9. I don’t know if Jack _______. If he ______, call me, please. A. es。 e B. will e。 will e C. will e。 e D. es。 es ( )10. If farmers ______ trees and forests, giant pandas ______ nowhere to live. A. cut down。 have B. will cut down。 will have C. will cut down。 have D. cut down。 will have ( ) 11. Millie says she won’t take part in Julie’s birthday party _______ she’s invited. A. unless B. after C. because D. if ( ) 12. I will wait _____ I hear from you. A. until B. since C. while D. because ( ) 13. Could you tell me _____ Johnson came here ? He drove here himself. A. how B. why C. when D. whether ( )1 4. Let’s go to the South Hill if it _______ tomorrow. But nobody knows if it ______ tomorrow. A. won’t rain。 rains B. doesn’t rain。 rains C. doesn’t rain。 will rain D. won’t rain。 will rain ( ) 15. If our government _______ pay attention to the safety of food, our health _______ in danger. A. isn’t。 is B . doesn’t。 will be C. won’t。 is D. isn’t。 will be