We hope to finish our experiment________.

 I can't believe what he says because he is _______ changing his mind. .

Henry was away from home for quite a bit and _______ saw his family.

—What do you think of Zhang Liang Ying's English songs?—Very attractive and lively. Almost no other Super Girls can sing ______ at present, I think.  

It is most _____that the environmentalists will come to the area to investigate the possible damage caused by the serious pollution.