___________she was invited to the ball made her very happy．
| A．If | B．That | C．When | D．Because |
His family music lovers.
| A．all are | B．are all | C．is | D．are being |
Those who singing may join us.
| A．are liking | B．likes | C．enjoy | D．is fond of |
There a knife and fork on the table.
| A．seems to be | B．seem to be | C．is seeming to be | D．are |
Over 80 percent of the population of China peasants.
| A．was | B．is | C．are | D．will be |
The whole class greatly moved at his words.
| A．was | B．were | C．had | D．is |