题目内容

The situation today is obviously different from ____it was only 50 years ago.

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Persistent people begin their success ____others end in failure.

I didn’t realize ____difficult it was to get the tickets for the performance.

You say you are brave. Now let’s see ____of us is the more timid(胆小的).

I know nothing about her except ____she is an English teacher in our school.

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