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（1）A.Here’s a glass of water.
B. Here’s a hamburger for you.
C.You can go to bed now.
（2）A. There are some computers.
B. There is only one.
C There’re two offices.
（3）A. Yes,they are.
B. Some little dogs.
C. Yes, there are.
（4）A. There are four.
B. I can see four.
C. It has four.
（5）A. It’s Mike’s.
B.He’s Liu Tao.
C. Helen’s.
（6）A. I can play football.
B. Playing football.
C. Football.
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
