相关试题
There is ____ Mr. Smith at the door who wants to speak to you.
| A．a some | B．certain | C．some a | D．a certain |
. To make sure that he was at home, I called him up ____ .
A. by chance B. in general C. in particular D in advance
In face of ____ failure, it is the most important to keep up ____
good state of mind.
| A．不填, a | B．a, 不填 | C．the, a | D．不填, the |
Mary couldn’t remember when she first met Mr. Anderson, but she was sure it was _____ Sunday because everybody was at _______ church.
| A．/;the | B．the;/ | C．a;/ | D．/;a |
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