Question

it is important( ) English will A of us to learn Bfor us to learn Cof us learning Dfor us learning

Answer 1

It's important for us to learn English well.
It's + 形容词 （for/ of)sb to do sth
如形容词表示的是人的品格，用of，如不能表示人的品质，用for。
如： It's kind of you to help me.( 我们可以说： you are kind. 故用of)
It's difficult for you to finish it .(我们不能说 You are difficult. 故用for）

Answer 2

选B
it is+adj+for sb to do sth 某人做某事是很...的
我们学好英语是很重要的
will应该是well

Answer 3

Bfor us to learn

Answer 4

b . it's important for sb. to do sth.

Answer 5

Bfor us to learn
上课没听吧，我大学毕业这么多年还记着

Answer 6

应选B.
be important for sb to do sth.....(某人……是很重要的，强调做某事对某人的重要性)