Everyone, please remain ____ until the plane has come to a complete stop.
| A．seat | B．seated | C．seating | D．to seat |
At the class get-together last night, I could hardly ______ Tom, for he had changed a lot and was no longer what he used to be in high school.
| A．remember | B．recognize |
| C．realize | D．request |
Wang Ming, our English teacher, has a good ______ of French; that is because he once studied in Paris.
| A．power | B．strength |
| C．vocabulary | D．command |
Another two people were reported to have died of the Ebolavirus yesterday, which caused greater _______ about their safety among the public.
| A．concern | B．expression |
| C．power | D．trouble |
When you apologize, you’re telling someone that you’re sorry for the hurt you caused , even if you didn’t do it ______ .
| A．by mistake | B．on time |
| C．on purpose | D．by accident |
These days strange things happened ___ in the small village, which caused a panic among the villagers.
| A．frequently | B．fluently |
| C．regularly | D．Sincerely |