Пожалуйста помогите очень безотлагательно! пожалуйста ! Complete the sentences with pronouns.

Пожалуйста помогите очень безотлагательно! пожалуйста !
Complete the sentences with pronouns. In some of the sentences , there is none than one possibility . Choose the appropriate singular or plural verb in parentheses where necessary .
1) I looked up some information about the average American family. I found out that _______(consists,consist) of 2-3 children.
2) The soccer team felt unhappy because _____ had lost in the closing moments of the game.
3) A basketball team is relatively small. _________(doesn't , don't ) have as many members as a basketball team.
4) The audience clapped enthusiastically . Obviously ______ had enjoyed the concert.
5) The audience filled the room to overflowing . ________ (was,were) larger than I had expected .
6) The crowd became more and more excited as the premier's motorcade approached . ______ began to shout and wave flags in the air.
7) The crowd at the soccer game was huge. ______ exceeded 100,000 people.
8) The office staff gave ____ boss a gold watch when she retired.
9) The office staff isn't large. _______ (consists,consist) of a secretary,a file clerk and a receptionist .
10) The young couple finally saved enough money to make a downpayment on ______ own house.
11) The class is planning a party for the last day of school. ______(is,are) going to bring many different kinds of food and invite some of _______ friends to celebrate with _______.
12) The class is too small. ______(is,are) going to be cancelled.