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题库 / Prep2007E2-SC-134
If a drug that is already on the market has the potential to help adults and children who have the same disease, or if it is widely used in children and the absence of labeling seems dangerous, the FDA can require that the drug undergo pediatric study.
that the drug undergo
that the drug undergoes
that the drug is to undergo
the drug undergoing
the drug to have to undergo
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require sb to do sth 要求某人做某事;
require that + 从句 需要，要求,谓语动词用“should +动词原形”，should可省略。
Also, in general, "require X to do Y" is only used when X is a person.
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