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（1）------ What do you want to eat at my party?
------ I don’t want to eat sweets.I like potato chips.
（2）------ Hello.Can I help you?
------ Yes, how much are those toys?
------ Those toys are two yuan and these toys are three yuan.
（3）------ Can you come to my party?
------ Yes.When’s your party?
------ It’s on Saturday at two thirty.
------ Great, I can come.Thank you.
（4）------ What do you want to eat?
------ I want to eat biscuits.
（5）---- How much are these tomatoes?
------They are two yuan a kilo.
----- May I have two kilos of tomatoes, please?
----- OK.Here you are.Four yuan , please.
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
