Look at the four people. We may not know them, but we need to say thanks to them.
①Mrs Lee(About 30)
Looks(外貌): Long curly hair, thin and tall.
She is a singer. She is kind and she often gives away money to help people in need (处于困难中的).
②Mr Wang(About 40)
Looks: Short black hair, thin and short.
He is a doctor. He works very hard to help sick (生病的) people in hospital. Usually he only sleeps five hours (小时) at night.
③Mr Zhang(About 20)
Looks: Short black hair, fat and tall.
He is a courier (快递员) and he goes to many places(地方) a day. He usually starts (开始) his work at 8 a.m. and goes home at 8 p.m.
④Mr Cao (About 50)
Looks: Short brown hair, short and a little fat
He is a street cleaner. He cleans many places every day.
根据文本内容，判断下列句子正误.
