阅读短文，根据短文内容选择正确答案。
Mrs Green is going to give a birthday party for Mary (Mary is her daughter). Mary is going to be thirteen years old. Twenty friends of Mary's are going to come to the party. They are all girls. Mrs Green is getting ready for party. Mrs White is helping her.
"Let's make a pretty cake," Mrs White says to Mrs Green.
"Ok. Thank you very much."
Mrs Green is going shopping now. She's going to buy fruit for the party.
Mrs Green buys some fruit. She buys a lot of pears, orange, and bananas. Then she goes home.
It's three o'clock in the afternoon. Everything is ready .Now the first girl is arriving. The party is going to start in thirty minutes.
（  ）（1） ______ is going to give a birthday party for Mary.
A. Mrs White B. Mrs Green C. Mary D. Mary's friend
（  ）（2） Mary is going to be ______ years old.
A. twenty B. ten C. twelve D. thirteen
（  ）（3） _____ are going to come to the party.
A. Thirty boys B. Twenty girls C. Forty children D. Mrs Green and Mrs White
（  ）（4） Mrs Green buys ____ for the party.
A. a cake B. some fruit C. some bananas and apples D. a lot of oranges
（  ）（5） The party is going to begin at ____ in the afternoon.
A. two thirty B. three C. four D. three thirty