ask one's permission , come up with , get along with ,make a speech ,fall downstairs

ask one's permission , come up with , get along with ,make a speech ,fall downstairs
1.He is feeling a little nervous ___ in front of the whole school tomorrow
2.How are you __your new classmates Terry?\
3. The cat ___for several times .But it's strange that nothing is wrong with it
4.No one has ___ a better explanation of why dinosaurs died out
5.Would you mind ___ before you take my dictionary away?

1. to make a speech
2. getting along with
3. has fallen downstairs
4. come up with
5. asking my permission

支持一下感觉挺不错的