Although ________ after the Civil War, the American blacks still took no important role in the white Americans except as servants and laborers.

There’s _______apple on the table. I like it very much.

I ___________ Tom for three days. Is he ill? —- I’m afraid so. The doctor said he needed ______________.

Five _______ students from different schools took part in the English contest last Saturday.

have you ever been to Beijing before?–No. it is the first time that I ____here.