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（1）The cat can swing .（一般问句）
swing ?
（2）Those are young elephants .（单）
.
（3）. She does reading in the language lab .（否）
She reading in the language lab .
（4）Are these lovely calves yours ?（肯定句）
These .
（5）Is there a sheep near the pond ?（复）
near the pond ?
（6）We call it a kid in English .
in English ?
（7）We have three English classes a week .
English classes a week ?
（8）The students play games once a day .
?
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
