摘要： China isn’t rich now, we’re working hard to make her richer and richer. A. Though; but B. Though; / C. Both; and D. Because; so

网址：http://m.1010jiajiao.com/timu3_id_2395541[举报]

China isn't rich now, we're working hard to make her richer and stronger.

________ China isn't rich now, ________ we're working hard to make her richer and stronger.

[　　]

________ China isn't rich now, ________ we're working hard to make her richer and stronger.