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Tommy is seven years old. Although he likes to play very much, he knows what he should do at school. So his teacher and classmates all like him. But recently（最近）he is always late for school. So his teacher talks with him. “Tommy,why are you always late for school these days? “Because every time the guidepost（路标）says：“‘Go Slow’”.
（1）Tommy was six years old.
（2）Tommy knows what he should do at school.
（3）Tommy is a lovely boy. Everyone likes him.
（4）Tommy goes to school late every day.
（5）Tommy is late for school , because he gets up late.
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
