找出下列句子的错误，并改正。
(     ) （1）What does people do in spring?
A       B C
改正：_____________
(     ) （2）Everyone enjoythesummer.
A   B   C
改正：____________
(     ) （3）Birds sings to welcome the spring.
A      B     C
改正：_____________
(     ) （4）Children goescampingwith their teachers.
A    B    C
改正：______________