. Although ________ after the Civil War, the American blacks still took no important role in the white Americans except as servants and laborers.
| A．no longer being slaves | B．were no longer slaves |
| C．no longer slaves | D．no longer been slaves |
---According to my grandma, it is a good idea to eat chicken soup when you have a cold.
---_________,scientists agree with her.
| A．Sooner or later | B．Once in a while | C．To be exact | D．Believe it or not |
His health is ______improving. I'm sure he will come back to work soon.
| A．gradually | B．frequently | C．fluently | D．finally |
—Did the naughty boy break the glass by chance?
—No, ______.
| A．of course | B．on purpose | C．by hand | D．for pleasure |
They______ with each other for two years before they got married.
| A．had fallen in love | B．got in love | C．had been in love | D．fell in love |
It has something to do with the part electricity ______ in our life.
| A．plays | B．gives | C．takes | D．makes |