The repair work may take us a long time，but          it’s worth trying.

Many people thought highly of what he said, but        , I thought he just showed himself off.

I think the talk given by the old scientist is ______ worth ______.

Men are equally as good as women at taking care of others; better ______, male nurses can be a great help in keeping patients still while they receive painful treatment.

—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.