Zhangqiang is said ______ the experiment in the lab, but I can’t find him there.

I don’t think the film named　“Hero(英雄)”　is very exciting. — I don’t think it is，____________.

What is mum cooking in the kitchen?—Fish, I guess. How nice it _____!

He found ______ very helpful to memorize the words of some popular English songs.

I usually get home late because there is ______ traffic on the road.