I’m still working on my project.—Oh, you’ll miss the deadline. Time is ______.

Mike is the __________student to come to school these days. —Yes, he is. He is the only ________American here!

It was foolish of you to take a taxi______you could walk there in five minutes

I remember there _____ a lot of fish in Yanglan Lake. Now it has been polluted.–What a pity! I think we should play a role in protecting the environment.

She feels uncomfortable, ____