Tom has two cousins, and ______ are engineers.
| A．both of whom | B．both of them | C．none of them | D．either of them |
No one ____ that to his face.
| A．dares say | B．dares saying | C．dare say | D．dare to say |
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 |