用括号里单词的正确形式填空。
(1)I have some ( envelope ).
(2)Do you have any ( paper )?
(3)He’s ( fix )his bicycle.
(4)Tony ( have )a hang glider.
(5)He likes ( swim ).
(6)Let’s ( eat )some carrots.
(7)He wants ( be )a doctor.
(8)The children ( be )busy last week.
(9)My hobby is ( collect )stamps.
(10)The ( leaf )are yellow in fall.