题目内容
23、—Why was he unhappy yesterday?
—A letter from home ______ an attack of homesickness．
A．set off B．set out C．set about D．set up
试题答案
23、A
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—Why was he unhappy yesterday?
—A letter from home ______ an attack of homesickness．
A．set off B．set out C．set about D．set up
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—Why was he unhappy yesterday?
—A letter from home ______ an attack of homesickness.
| A．set off | B．set out | C．set about | D．set up |