听录音，给下列句子标序号。（听两遍）
(     )⑴Stop！ There’s a red man.
(     )⑵What are you doing?
(     )⑶It doesn’t matter.
(     )⑷We mustn’t walk now.
(     )⑸People drive on the left side of the road.
(     )⑹Our living room is big and clean.
(     )⑺I can walk fast.
(     )⑻I’m not sleepy.