下列自然资源中,属于可再生资源的一组是①黄金 ②阳光 ③草地 ④煤炭 ⑤天然气 ⑥水
A:①②③
B:④⑤⑥
C:①③⑤
D:②③⑥
A: Hi, Jenny!____ my birthday party on Saturday afternoon?
B: Sure,____.
A:____you, Linda?
C: I'm sorry I can't. I ____ study for a test on weekends.
A: That's too bad. Maybe next time.
C: Sure. Thanks for your ____.
— __________.
为古希腊民主政治奠基的是