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| A. I visited the Great Wall. B. I lost my football. C. Rubbish. D. It’s on the 22nd of April. E. On foot. F. No, there wasn’t. G. It was great fun. H. We can make some toys. I. No, I didn’t. J. Because I wanted to play with you. |
1．Why did you call me?
2．Did you water flowers this morning?
3．How did you get to the park?
4．Was there a king long long ago?
5．What’s the matter?
6．How can we reuse these things?
7．What did you do last May Day?
8．What makes the streets messy?
9．When is Earth Day’?
10．How was your holiday?
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
