it固定句型有关试题答案解析

考点：动词不定式的用法

题型：单词拼写-适当形式 | 难度：适中

1 . It’s difficult for me ________ (develop) a good habit.

考点：不定式的用法

题型：单词拼写-适当形式 | 难度：适中

2 . It is important for us _______ (protect) the Earth.

考点：形容词的运用及语境理解

题型：单词拼写-汉语提示 | 难度：适中

3 . It’s __________(不可能)for him to work out that difficult Maths problem since he is not good at it.