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1. The _______________ (child, children) are very excited.
2. Jane is ______________ (reading, read) a newspaper.
3. My cousin ______________ (have, has) a CD Walkman.
4. Where are the _______________? (glass, glasses)
5. It means we should ______________ ( keep, keeps) quiet.
6. My father likes _______________ (listen, listening) to the radio.
7. Helen often __________________ (does, do) housework at the weekends.
8. It ________________ (was, were ) there a moment ago.
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
