1.B
as is often the case
意思:通常就是这样
as引导定语从句,指代后边的整句Tom was completey better by the time the doctor arrived.
as又作is often the case 主句的主语.
2.B
这个句子里面你是否忘记写了一个 "it"?
It is necessary that he _____.
It is necessary that sb should do sth 是虚拟语气
should可以省略
1.B
as is often the case
意思:通常就是这样
as引导定语从句,指代后边的整句Tom was completey better by the time the doctor arrived.
as又作is often the case 主句的主语.
2.B
这个句子里面你是否忘记写了一个 "it"?
It is necessary that he _____.
It is necessary that sb should do sth 是虚拟语气
should可以省略