Question

英语，谢谢！

Answer 1

1. rude,for,to,look,down,upon
   

2. meaningful that return

3. necessary for to

4. useful to speak

5. impossible for to in/within
   

Answer 2

1.impolite for to look down on

追答

2.meaningful that return

3.necessary for to

4.useful to speak

5.impossible for to in

满意请采纳！