下列说法错误的是（　　）

⑴Let's go to the library.____                   A.

⑵School is over.It's time to go home.____      B.

⑶It's hot.I can swim.____                      C.

⑷Today is snowy and cold.____                D.

⑸We have art class at 3 o'clock.____           E.