She was helped to repair her bicycle.
在help(to) do sth不定式符号to可省略。
He helped(to) repair the machine.
十二、两个或两个以上的动词不定式并列在一起时,第一个不定式带to,后面的不定式一般省去to
(1)Her job is to take care of the children and wash clothes.
(2)The girl doesnt know how to read and write.
但如果是在对照场合,则不省去to
(1)It is better to laugh than to cry.
(2)The purpose of new technologies is to make life easier,not to make it more difficult.
十三、than连接两个动词 不定式没有对比关系时,后一个不定式可以省to
(1)You might do worse than(to) do as he does.
(2)I cannot do better than(to)get away for the few days.
下面句子中than连接的不是两个动词不定式than后的动词不定式通常要带to
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