3 如右图平面坐标系所示,假设沙发初始位置为$A(2,3)$,向右平移4米,再向上平移1米后,新坐标为B,并在平面坐标系中标注出来.

B(6, 4)，标注见

4 若购买2幅装饰画和3盆绿植共花费260元，已知装饰画单价比绿植单价贵40元，求两者单价。

装饰画单价为76元,绿植单价为36元.

1 Choose the best answer.(选择最恰当的答案）
（）（1）My parents the living room now.
A. decorate B. are decorating C. decorated
（）（2）Which color better, light blue or gray?
A. look B. is looking C. looks
（）（3）There a big TV and two armchairs in the corner.
A. is B. are C. has

(1) B
(2) C
(3) A

() (4) A: "Let's buy a new rug!"
B: ""
A. No, I don't.
B. Good idea!
C. I'm fine.
() (5) A: "What do you think of the yellow curtains?"
B: ""
A. They're beautiful.
B. I can't swim.
C. Yes, I do.

(4) B
(5) A