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Mike: There are fifty pupils.
Sam: How many desks and chairs are there in your class?
Mike: There are fifty desks and fifty chairs.
Sam: Oh, no. There are fortynine desks and fifty chairs.
Mike: There is a broken(坏了的) desk. My teacher takes it to mend(修理).
Sam: Oh, yes.
1．There are forty desks in the class.
2．There are fortynine pupils in the class.
3．A desk is broken.
4．Two chairs are broken.
5．Mike’s teacher takes a desk to mend.
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
