几道英语题，各位高手帮帮忙

Question

1.I go to a formal western dinner party for the first time.
( )my ( ) time to go to dinner party for.

2.Linda couldn’t see David somewhere.(改为否定句)
David ( )himself.

3.Lucy likes Chinese, too.
Lucy likes Chinese,( ) ( )。

4,Some students do homework every day.
( ) ( )students to homework every day.

5.People will live to be 200years old in one hundred years.
.People will live( )( )( )200 years in one hundred yeas.

6,It seems that he is unhappy.
He ( )to ( )unhappy.
7.i need some help now.

Help is ( )( ).