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A: 1. ________
B: She is my friend Mary.
A: 2. ________
B: She is from China.
A: 3. ________
B: Yes, she is. She misses her parents and her pet dog.
A: 4. ________
B: Great. There is a panda.
A: Yes, it is very cute.
B: 5. ________
A: OK. I think we will have a good time.
| A．It’s nine. Let’s go to the zoo. |
| B．Who is she? |
| C．Let’s ask Mary to go with us. |
| D．Is she writing a letter? |
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
