Question

______ is important for all of us ___ English loudly in the morning.

A．It; to read	B．That; to read
C．It; reading	D．That; reading

Answer 1

A

考查“it is +adj. +for sb. to do sth.”句型。其中，it是形式主語，真正的主語是動詞不定式（to do sth.）,不定式太長，為避免頭重腳輕而用it代替，同時，把不定式放在句尾。