.
Mary quickly closed the door of her room _______ her father could reach it to keep him out.
| A．before | B．when | C．as | D．while |
相关试题
I'm amazed to hear from my school teacher again. _______，it is ten years since we met last.
| A．In a word | B．What’s more |
C．That’s to say | D．Believe it or not |
But for their help，we ______ the program in time.
| A．can not finish | B．will not finish |
C．had not finished | D．could not have finished |
We tried to find a table for seven，hut they were all .
| A．given away | B．kept away |
C．taken up | D．used up |
______ a certain doubt among the people as to the practical value of the project.
| A．It has | B．They have |
C．It remains | D．There remains |
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