_______ your opinions are worth considering, the committee finds it unwise to place too much importance on them.
| A．As | B．Since | C．Once | D．While |
Some friends tried to settle the quarrel between Mr. and Mrs. Brown without hurting the feeling of ______, but failed .
| A．none | B．either | C．both | D．neither |
His sudden look of fear made _____ clear that he had something to do with the matter.
| A．him | B．this | C．it | D．that |
Teenagers are warned to be careful when making friends online, because when you can’t see a person, they could be _______.
| A．everybody | B．somebody | C．anybody | D．nobody |
He hurried to the station only ____ that the train had left.
| A．to have found | B．finding | C．found | D．to find |
Lily’s mobile phone was left in a taxi accidentally, never______________ again.
| A．to find | B．to be found | C．finding | D．being found |