—This is really lively party.There's a great atmosphere，isn't there?
—________.The hosts know how to host a party.(2013·山东，32)
| A．Don't worry | B．Yes，indeed |
| C．No，there isn't | D．It all depends |
____, he does not know the answer.
| A．As he is a teacher | B．As he is teacher |
| C．A teacher as he is | D．Teacher as he is |
We were ____ to go out for a camp ____ it began to rain.
| A．hardly; than | B．around; as |
| C．about; when | D．nearly; while |
____ several times, the young scientist still kept on doing his experiments.
| A．Having failed | B．Having been failed | C．Failed | D．To fail |
It was last October ____ they finally came back to their hometown.
| A．when | B．that | C．what | D．until |
My pen is missing I can’t find ____ anywhere.
| A．one | B．this | C．that | D．it |