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（1）It is usually （非常冷和潮湿）in spring here.
（2）That day ____ （是我的第一天）in Beijing.
（3）When I was outside, the weather ______ （迅速改变）.
（4）The sky_____________________________（开始变蓝）when I went to school.
（5）Don’t put the _____________________________ （新鲜的牛奶）under the chair.
（6）I usually drink __________________________________ （一瓶果汁）after dinner.
（7）The boy will come back __________________________________ （在午餐时间）.
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
