问题
选择题
____________ to do the repair, and what you need is only a hammer and some nails.
A．It is hard
B．That is easy
C．That is hard
D．It is easy
答案
答案：D
根据what you need is only a hammer and some nails.你只需要一把锤子和一些钉子，可知修理很简单。____________ to do the repair中真正的主语是to do the repair，所以要用It作形式主语。选D。