下列各组词语中，加线字的读音全都正确的一组是（    ）

边长为1的正三角形ABC内一点M（包括边界）满足：$\overrightarrow{CM}$=$\frac{1}{3}$$\overrightarrow{CA}$+λ$\overrightarrow{CB}$（λ∈R），则$\overrightarrow{CA}$•$\overrightarrow{CM}$的取值范围为（　　）

读一读， 选择句子补全对话。

A. They have breakfast at seven o'clock.    
B. What time do you get up?
C. I have breakfast at half past seven.    
D. I go to school at a quarter to eight.

Lisa: Hello, Pat.

Pat: Hi, Lisa. ____ 

Lisa: I get up at a quarter past seven. Then I brush my teeth and wash my face.

Pat: What time do you have breakfast?

Lisa: ____

Pat: Do your parents have breakfast at half pastseven too?

Lisa: No, they don't. ____

Pat: What time do you go to school?

Lisa: ____