补全对话

从方框中选择最佳选项完成对话, 有两项多余

a. I'm cleaning the house.

b. Is your mother making dumplings with her?

c. What about your father?

d. Yes, we are.

e. She is buying some food in the shop.

f. What's your mother doing?

g. They are making cards for their family and teachers.

Daming: Hi, Tony! Are you getting ready for Spring Festival?

Tony:____ 

Daming: What are the girls doing?

Tony:____

Daming:Sounds great(听起来很好)! Where is your mother?

Tony:____

Daming: What are you doing?

Tony:____

Daming: How hard you are working! And is your sister helping you?

Tony: No, she isn't. She is shopping with my mother.

Daming:____

Tony: Look! He's painting the door there.

若x满足4^x=8，则x= ____．

       我们在保护生态基础上，有序发展水电，积极发展核电，鼓励支持农村、边远地区和条件适宜地区大力发展生物能、太阳能、地热、风能等新型可再生能源。2005年至2008年，可再生能源增长51%，年均增长14.7010。2008年可再生能源利用量达到2.5亿吨标准煤。农村有3050万户用上沼气，相当于少排放二氧化碳4900多万吨，水电装机容量、核电在建规模、太阳能热水器集热面积和光伏发电容量均居世界第一位。（摘自《温家宝总理在哥本哈根气候变化会议领导人会议上的讲话》）

若ab＜0，则正比例函数y=ax与反比例函数y= 在同一坐标系中的大致图象可能是（　　）。