David: I can’t go to school today, Mum.
M:
D: I have a headache and a cough.
M: Oh, dear. You have a cold. I will call Mr Wu after breakfast.
M: Hello,
W: This is Mr Wu speaking.
M: This is David’s mother. David has a cold today. He can’t go to school.
W:
M:
W: Let me see. It’s Wednesday today. We have Chinese, English, Science and music.
M: Thank you, Mr Wu.
A.I am sorry to hear that. |
B.Who is that? |
C.What lessons do you have today? |
D.May I speak to Mr Wu? |
E.It’s time to have breakfast. |
F.Let’s go to school now. |
G.What’s the matter? |

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

