Question

A:1.If you had told me earlier,I_____(be able) to help you.2

Answer 1

A.

1.would have been able

2.would not have made

3.could come

4.were

5.is

1-4 是虚拟语气 5句就是一个简单的条件状语从句

虚拟语气的句型是:if + 一般时,主句用过去将来时表示虚拟.

if +过去时,主句用过去将来完成时来表示虚拟.例如第三句

if+ 主语 + were,主句用过去表示,例如第四句

B.

1.should

2.had to

3.should have come

4.should not have asked

5.had to explain

3-4 是句型should have done和 should not have done 应该做某事而没做,不应该做而做了