I think you should end it _______ it’s too late, or you may be sorry about it later.
As a student we should _______ current affairs?
—I’m told that our plane will at least delay 3 hours. —What do you think has happened? —It is said to have been _______ by a terrible storm.
—I haven’t seen you walk your dog recently? Why?—Well, I have _______ the habit, as it _______ too much of my spare time.
If people from different countries learn to respect each other’s customs and cultures, our world will sure to become a big happy family ______. A. some time B. some day C. some times D, sometimes
Students often ______ a lot of difficulties when they communicate with foreigners for the first time.