高中非谓语动词练习.I am busy now,so I can’t help ------ the machine.A

I am busy now,so I can’t help ______ the machine.
A.repair B.to have repaired C.repairing D.fixing
A.repair
can't/ couldn't help (to) do sth.
不能帮忙干某事.
我现在正忙着,所以,我不能帮忙修机器.
这里并不是:can't help doing 忍不住去做某事.
Jane came very close ______ a gold medal for Britain in the Olympics.
A.to win B.winning C.to winning D.to be won
be /come close to
to 是介词,这样就明白了吧?后面接名词或分词.
简很接近金牌.(事实上是没得到,后面就不译了)