He didn’t enjoy the play because he ____.
| A．was boring | B．bored | C．was bored | D．boring |
This kind of bicycle________in Tianjin．
| A．is made |
| B．are made |
| C．made |
| D．makes |
I can’t hear you．Would you please speaK________？
| A．clearly enough |
| B．clear enough |
| C．enough clear |
| D．enough clearly |
Food and drink should________to be brought into the reading room．
| A．not to allow |
| B．allow |
| C．not be allowed |
| D．not allow |
Attention，please！All the mobile phones must________before the meeting starts．
| A．turn off |
| B．be turned off |
| C．be turning off |
| D．turned off |
I think________are old enough to make their own decisions．
| A．sixteen-year-old |
| B．sixteen-years-old |
| C．sixteen-years-olds |
| D．sixteen-year-olds |