They ____ on a cure for tuberculous while they were doing research on something else
来源:百度知道 编辑:UC知道 时间:2024/06/07 08:06:27
填 follow
进行研究doing research结核病, 当然要进行跟踪随访follow on
They went on a cure for tuberculous while they were doing research on something else
worked work on 致力于的意思
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____ (feel) cold,they made a fire____(warm) themselves up
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1. They ____ chickens, cattle and crops as well on the farm.
On my desk ____ a pen and two pens
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