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Last Saturday morning, Lucy went to a supermarket. She wanted to buy a big cake for her mother’s birthday. There were many people in the supermarket. Suddenly, Lucy saw a beautiful wallet on the floor.
“Whose wallet is it?” she asked, but no one answered.
“Excuse me, is this wallet yours, sir?” she asked the man in front of her.
“No, it isn’t.” the man said, “Perhaps it’s hers.” He pointed to the woman in front of him.
“Is this wallet yours?” she asked the woman.
“Let me have a look. Oh, yes, it is. Thank you very much.”
1．Lucy went to a supermarket last Sunday.2．There were many people in the supermarket.
3．Lucy saw a beautiful cake on the floor.
4．Lucy asked a man behind her.
5．It is the woman’s wallet.
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
