选出正确的一项。
1. Look _________(in/ at) the beach.
2. _________ (Canberra/ London) is the capital city of Australia.
3. A little flag inside Australia's flag is _________ (the UK’ s / Canada's) flag. 
4. Kangaroos _________ (live/ lives) in Australia.
5. There are many beautiful _________ (beach/ beaches).

Read and tick “T” or cross “F”：Tom plays football at the park. （_____）

Amy often ______ her ______ after school.

—Can I try __________ this dress? （    ）
—Sure.

A．in

B．on

C．out

The children are ______ ______ in the library.