Recently a survey ______ prices of the same goods in two different supermarkets has caused heated debate among citizens.
| A．compared |
| B．comparing |
| C．compares |
| D．being compared |
He stood there for two hours ____ the game.
| A．watched | B．watching | C．is watching | D．was watching |
Is it always easier ____ friends than to keep them?
| A．making | B．make | C．to make | D．made |
They were made ____ fourteen hours a day.
| A．work | B．working | C．worked | D．to work |
Why not ____?
| A．let him to go home | B．to let him go home |
| C．let him go home | D．to let him to go home |
The headmaster’s words are quite _____.
| A．encouraged | B．encouragement | C．encouraging | D．encourage |