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（1）When do you _______________?We have them on Tuesday, Thursday and Friday .
（2）Hi, Li Yan. I have __________to tell you.
（3）June 1st (六月一日) is _____________.
（4）__________is the first day of the year.
（5）We often __________in our meeting hall.
（6）They are lion cubs ,but they can do __________things.
（7）This is our __________.We often do experiments here.
（8）We often draw pictures in ____________.
（9）We often ____________in the library.
（10）We often play the violin in _____________.
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
