We were busy ________ (get) things ready for the trial production when he phoned us.
更新时间:2024-11-15 18:54:03getting
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We were busy ________ (get) things ready for the trial production when he phoned us.
________ (catch) in the rain, he was wet to the skin.
This test ________ a number of multiple choice questions.
He asked me whether my brother ________ (fly) to Beijing.
A beam of light will not bend round corners unless ________ (make) to do so with the help of a reflecting device
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