Under what conditions may the methods be used改为强调句,强调Under what conditions
问题描述：
Under what conditions may the methods be used改为强调句,强调Under what conditions
答
It is under what conditions that may the methods be used.
强调句公式：It + be + 强调部分 + 连接词 + 其他
连接词：强调部分为人用who,其余的用that（现在不是那么严了,强调部分是人时用that也行）