in total 总计;一共
increase by 增加
insist (that) sb. (should) do 坚持要某人做某事(虚拟语气)
insist on doing/sth. 坚持……
insist that… 坚持说、坚持主张
intend for 为……准备
intend to do 打算去做
invite sb. to sp. 邀请……到……
It appears/appeared (to sb.) that… 对某人来说好像……
It is (high) time (that) sb. did/should do 是该做……的时候了(虚拟语气)
It is A not B… 是A不是B(谓语动词与A一致)
It is a pleasure to do… 很高兴做某事
It is believed that… 人们相信……
It is better to do…than to do… (后者)比(前者)好
It is certain that… ……是确定无疑的
It is hoped that… 人们希望……
It is important that… ……重要
It is known that… 人们知道……
It is likely that… ……有可能……(可能性一般)
It is necessary that… ……有必要
