欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

_________ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.

A. Whatever; that       B. However; as         

C. However; that        D. Whatever, which

_______ difficult the task may be, we must finish it on time, because we can’t miss _______ a precious opportunity．

A. Whatever; so　　　　　　　　　　　　　　　　　　　　　　　 B. However; such

C. However; so　　　　　　　　　　　　　　　　　　　　　　　 D. Whatever; such

 _______ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.

A. Whatever; that                          B. However; as     

C. However; that                          D. Whatever; which

_________ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.

_________ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected．

       A．Whatever; that        B．However; as

       C．However; that         D．Whatever, which