根据句意,用括号内所给单词的适当形式填空。

小题1:I think this bag is one of the ________ (speak) .

小题2:How __________ (careful) the boy is! He left his key in the library.

小题3:Little Kitty likes hiding ________ (her) behind the door to frighten her friends.

小题4:The two         (rob) got into the car and drove away.

小题5:We played ____________( happy ) in the park yesterday than we did today.