补全对话,每空一词
A:I’m anxious,because I 1._________ find my backpack.
B:Really?2._________ did you drop it?
A:I think I 3._________ it during the concert.
B:So it 4._________still be in the symphony hall.Go there to have a look.By the way,5._________ are you so anxious?
A:Because I have a math test 6._________algebra tomorrow.
B:Oh,terrible.
A:It’s 7.________ that it counts 30% 8.________ the final exam.
B:I’m 9._________ to hear that.
A:10._________ you have any ideas,please call me.
B:OK.I will.
1. can’t 2. Where 3. dropped 4. might 5. why
6. on 7. crucial 8. to 9. sorry 10. If