用所给单词的适当形式填空：Are you _____ ( play) with your sister?

The boys are______________ under the tree

A．have a picnic

B．having picnic

C．having a picnic

正确形式填空
1. She ______ (go)to school every day.
2. Pat ______(brush) her teeth _____(two)a day.
3. Look! The boy is ______(run) in the corridor.
4. You should _____(help) others.
5. Mary is ________(throw) the rubbish in the bin.

Dad is_____ an email on the computer.  ( )

A．write

B．writing

C．wrote

用单词的适当形式填空。 
1.I went to the bookstore and _______ (buy)a new book yesterday. 
2.Did you _______ (row) a boat last weekend? 
3.Look, ZhangPeng is_______ (play) football. 
4.Chen Jie is going to make _______ (she)mother a birthday card. 
5.I would like a new pair of _______ (shoe)for my birthday.