_______ a cold morning, I opened the window and was glad to find that It was snowing
outside.
| A．By | B． In | C．At | D．On |
Our English teacher suggests that we should __________ the dictionary every time we come across a new word while reading.
| A．refers to | B．look up | C．not refer to | D．not look up |
—Hello, JinlingHotel. What can I do for you?
—Do you have a room __________ for this weekend?
| A．useful | B．available | C．possible | D．empty |
When I went to the lake, my father was__________ fishing.
| A．putting on | B．taking on | C．concentrating on | D．getting on |
He is always full of __________ as though he has neverknown tiredness.
| A．strength | B．energy | C．force | D．spirit |
At present we have no __________ of life on otherplanets.
| A．entrance | B．evidence | C．decision | D．suggestion |