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B.
C. 
D.
E.
1．—I am a boy and you are a girl. Let’s play a game.
—OK.
2．—Where is Peter from?
—He is from Canada.
3．—What’s that?
—It is a panda. It’s from China.
4．—Hi, I am John. I’m from the USA. What about you?
—Hi, I am Tom. I am from the UK.
5．—Bob, this is Mary. She is a new student.
—Hi, Mary. Nice to see you.
—Hi, Bob. Nice to see you, 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
