听录音，用阿拉伯数字给下列句子标序号，听两遍。
(   ) ⑴Welcome back to school.
(   ) ⑵Let’s go to the playground.
(   ) ⑶What day is it today?
(   ) ⑷Come and play table tennis.
(   ) ⑸I go to school at seven ten.