For some time the expert __________ people of the health risks caused by passive smoking. He says he won't stop until all the smokers around him decide to quit smoking.
| A．is warned | B．is warning | C．has been warning | D．has been warned |
It makes no ______ to me what you say.I won’t care.
| A．choice | B．effort | C．difference | D．decision |
All the passengers were ______ of the flight which was put off because of heavy fog.
| A．informed | B．declared | C．accused | D．remarked |
The reason ______ the delay is ______ we have had difficulty in obtaining materials.
| A．for;that | B．for;because | C．to;that | D．to;because |
I don’t think you will have any difficulty ______ a driving licence.
| A．to get | B．in getting | C．for getting | D．get |
People who are addicted ______ drugs can not go without them for a few hours.
| A．in | B．for | C．of | D．to |