The old woman had a letter from her son in the army_____ to her.
| A．read | B．write | C．written | D．received |
You can make a complaint to the local government _____ you are happy with the way things are.
| A．unless | B．if | C．once | D．as |
We finally managed to make the villagers _____ of the value of science.
| A．to convince | B．convincing | C．convince | D．convinced |
— I wonder _____ Mr. Black changed his mind to take part in the movement.
— After he listened to the speech by Mr. King.
| A．when was it that | B．when was that it | C．when that was | D．when it was that |
—He got the first prize in a National Contest of Popular Music.
—Oh. That’s what he _____ for years.
| A．had been expecting | B．has expected | C．expected | D．has been expecting |
Our shoes are of great variety and quality.________. Quickly buy it!
| A．Opportunity seldom knocks twice | B．Lies have short legs |
| C．One false move may lose the game | D．Kings go mad, and the people suffer for it |