题目内容
用所给动词的适当形式填空:
(employ, wait, happen, break, visit, play, take, save, learn, ask)
Don't begin your experiment without ________ for the teacher's advice.
答案:asking
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题目内容
用所给动词的适当形式填空:
(employ, wait, happen, break, visit, play, take, save, learn, ask)
Don't begin your experiment without ________ for the teacher's advice.