He was afraid the yard because he was afraid by the brown dog lying at the gate.
| A．to enter; of being bitten |
| B．to enter; to be bitten |
| C．of entering; of being bitten |
| D．of entering; of be bitten |
--Excuse me, I don't think you can smoke here.
---Really sorry. I ______ this is a non-smoking room.
| A．didn't know | B．don't know | C．have no idea | D．haven't known |
The class ______ big. Now the class_______ practicing swimming.
| A．are ;are | B．is ;is | C．is ; are | D．are ; is |
Each of us has to write a ______ report every three weeks.
| A．two-thousand-words | B．two-thousand-word |
| C．two-thousands-word | D．two-thousands-words |
Mary was born in 1752 in a rich family in _____ is now the state
of Virginia.
| A．which | B．where | C．that | D．what |
His plan was such a good one_________we all agread to accept.
| A．so | B．and | C．that | D．as |