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Today is Sunday. It’s eight o’clock in the morning. It’s a sunny day. Betty and her parents will go to the Great Wall. Betty’s father is a policeman. He is handsome. Her mother is a doctor. She is beautiful. Now they are on a bus. There are twenty people on the bus. Some are English and some are American and Japanese. They look very happy. There is pretty girl and a young man on the bus. The girl is a guide and the man is a driver.
1．It is sunny Sunday morning.2．Betty’s father and mother are both doctors.
3．There are twenty people on the bus.
4．The young man is a guide.
5．They will go to America.
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
