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（_____） 1. A. I lost my schoolbag. B. I lost my notebook.
C. I like my schoolbag.（_____） 2. A. Put it on your books. B. Put them near your books. C. Put away your books.
（_____） 3. A. What's in your schoolbag? B. What's in your classroom? C. What's in your storybook?
（_____） 4. A. Look! It's black and white.
B. Look! It's big and fat. C. Look! It's short and thin.
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
