Mary went to the box office at lunch time, but all the tickets ____out.
| A．would sell | B．had sold | C．have sold | D．was selling |
Some experts demanded that children _______ time for sleep and play.
| A．give | B．should give | C．would be given | D．be given |
This type of jewelry is ______, so you’d better buy some as soon as possible.
| A．valueless | B．worthless | C．high | D．priceless |
_____ has already been pointed out , grammar is not a set of dead rules.
| A．As | B．It | C．That | D．Which |
Father went to his doctor for _____ about his heart trouble.
| A．an advice | B．advices | C．advice | D．some advices |
He is one of the teachers who _____ English but the only one of the teachers who _____ French in our school.
| A．know … knows | B．knows … know |
| C．knows… knows | D．know … know |