(1)
A.She’s jumping.
B.They are jumping.
C.He’s jumping.
D.It’s jumping.
(2)
A.She’s playing football.
B.They’re playing basketball.
C.He’s listening to music.
D.They are playing football.
(3)
A.He’s taking pictures.
B.They’re jumping.
C.It’s singing.
D.They’re singing.
(4)
A.They’re drinking soya milk.
B.He’s reading a book.
C.She’s listening to music.
D.We’re taking pictures.
(5)
A.It’s green .
B.I’m fine .
C.I’m ten .
D.It’s ten yuan .
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