题目内容：

一些练习题啦,下下下下面面面面面
1 Are they__________in the playgroud.
2 Tom and his family________reading books in the sitting--room.
3 Please come and help______ with our Math.
4 I want to buy some books about music.I should go to the_______
5 Let's ______clothes now.
6 It is very hot today,I want to go_______.
7 We are piaying chess.Come and______
8 She's __________in the kitchen.
9 The cat is __________the mouse.
10 We are __________ this afternoon.
example:
join us studying are cooking us bookshop wash runningafter swimming going to the library