My English teacher insisted that the exercises _________ very difficult and that we ________ it carefully.
| A．were; must finish | B．be; finish | C．were; finish | D．be; finished |
Bill has been working on The Wall Street Journal for eight years and never once__________late to work.
| A．he had come | B．he has come | C．had he come | D．has he come |
There is a belief among students in some universities to be a volunteer will help prepare themselves for the future.
| A．where | B．who | C．whether | D．that |
--Guess what? Yesterday I ran into Jessie, one of my old friends. We haven't seen for years.
--__________！
| A．Sounds great | B．Good for you | C．So nice | D．Once again |
Jean could be a very pretty girl, but she__________no attention to her clothes.
| A．pays | B．was paying | C．paid | D．had paid |
It's hard to track__________blue whale in that ocean, which has been killed off by commercial whaling and is now listed as__________endangered species.
| A．the; the | B．the; 不填 | C．a; 不填 | D．the ; an |