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（1）___________（什么时候）did they come? – They came last week
（2）We ________（穿）warm clothes yesterday.
（3）I was ________ (在……之间) the two girls .
（4）The bad man was_________(生气的).He__________(带走)Ma Liang away.
（5）My room were ________ （脏的）yesterday.I ________(打扫，清理) it.
（6）He ______ ______ his bike and hurt his knee yesyerday.
（7）Wash your hands __________ （在……之前）you eat.
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
