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（1）What are they doing ?
A.They’re playing football.
B.They’re playing basketball.
C. They’re playing pingpong.
（2）What are they doing ?
A.They’re shooting.
B.They’re passing the ball
C. They’re watching a ball game.
（3）Who are talking ?
A.Teacher and student.
B.Mother and son.
C. Mike and his cousin.
（4）Where was Yang Ling ?
A. On her father’s farm.
B.On her uncle’s farm.
C. On her aunt’s farm.
（5）Which sign are they talking about ?
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
