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Today is Sunday. I go to a shop by bike. I want to buy some gifts for my friends. I want to buy a new bag for Betty. Her bag is old. I want to buy a red toy for John. His favourite colour is red. I want to buy yellow socks for Kitty. And I want to buy a white cap for Jack. He likes caps.
1．I go to a park by bike on Sunday.2．I want to buy some gifts for my friends.
3．Betty’s bag is old.
4．I want to buy white socks for Kitty.
5．Jack likes caps.
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
