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Hi, I'm Betty. I'm twelve years old. I have eight subjects at school. I have Chinese and Maths every day. I like PE and Art. I usually go to the park on Sunday. The park is beautiful. I can see a lake in the park. Some duck boats are on the lake. I like trees near the lake. I can draw pictures there. My friend Sally can't draw. She can ride a bike there.
1．Betty has seven subjects at school.2．Betty goes to the park every Saturday.
3．Some ducks are on the lake.
4．There are（有）some trees near the lake.
5．Sally can draw a bike in the park.
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
