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B: Hi, Yang Ling.
A: Glad
B: Glad to see you,
A: What's that
B: Oh, it's
A: Can
B: Sure.
A:
B: No,
A: Oh, I see. He is Helen's
B: Yes, he is. It's time
A: OK. Let’s go home.1．
| A．two | B．to | C．too |
| A．two | B．to | C．too |
| A．on | B．to | C．in |
| A．I | B．He's | C．my |
| A．she | B．I | C．He's |
| A．Is | B．Are | C．Am |
| A．I'm | B．You're | C．He's |
| A．brother | B．friends | C．uncle |
| A．two | B．to | C．too |
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
