the machine has ___before it is put into use.(get test)

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• The new machine ought to(test)before it is put to use
• 根据首字母提示填空完成句子.每空一词.Read the i() first before you use the machine or you may get hurt.The spirit is passed on to the younger g().When you travel in the dessert,the c() is the only transport.The c() has hard skin and sharp teeth.It can kill an animal much larger than itself.
• The new machine ought to (test)_before it is put to use
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• the machine has ___before it is put into use.(get test)
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