The teacher came into the classroom _______ by his students.
| A．following | B．to be following | C．followed | D．having followed. |
Having been working as a coach for years, I am __________ enough to know it is going to be a very difficult situation to compete against three strong teams.
| A．conscious |
| B．realistic |
| C．flexible |
| D．sensitive |
The difficulty which we had __________ with the local people has now been removed.
| A．communicate |
| B．to communicate |
| C．communicated |
| D．communicating |
Studies show that daydreaming contributes significantly to concentration powers and the ability __________ with others.
| A．communicating |
| B．to be communicated |
| C．to communicate |
| D．to communicating |
Parents and children should communicate more to __________ the gap between them so that they can understand each other better.
| A．open |
| B．narrow |
| C．widen |
| D．leave |
Though __________ to see the strangers, the housewife gave them a big smile and said hello.
| A．surprising |
| B．to be surprised |
| C．surprised |
| D．having surprised |