Having been born ten years earlier, you could have witnessed the disaster.
        Given more time, we could have done the work much better.
        You would be foolish to make friends with such people.
       
        ④ ……，thought/but ……
        Einstein cared little for money, though he could have been very rich.
        He could have got the job, but he didn't apply for it.
        上面的1）题就属于该句型，表示他本来可以做那份工作弄到一份很不错的薪水。
       
        Self-practice
        下面同学们试做一下《语法分册》150页有关含蓄条件句的几道题。
       
        3．名词性从句中的虚拟语气
        Test yourself
        与上述虚拟语气不同，名词性从句的虚拟语气大都与谓语动词有关，用法也比较简单，请同学们先做一下几题，然后我们一起总结以下都有哪些规律可以遵循。
        1) Wouldn't you rather your child _____ to bed early?(2000.1)
        A.go B.went C.would go D.goes
       
        2) Mike's uncle insists ____ in this hotel.(2000.1)
        A.staying not B.not to stay
        C.that he would not stay D.that he not stay
       
        3) Sometimes I wish I ____ in a different time and a different place.(2000.1)
        A.be living B.were living C.would live D.would have lived
        4) It is essential that these application forms ____ back as early as possible.(2000.1)
        A.must be sent B.will be sent C.are sent D.be sent
       
        5) It is recommended that the project _____ until all the
        preparations have been made. (1995.6)
        A.is not started B.will not be started C.not be started D.is not to be started
       
        6) We are all for your proposal that the discussion ____.(1998.6)
        A.be put off B.was put off C.should put off D.is to be out off
       
        7) The suggestion that the mayor ________the prizes was accepted by everyone.(2000.6)
        A.would present B.present C.presents D.ought to present
       
        8) It's already 5 o'clock now.Don't you think it is about time ____? (1996.6)
        A.we are going home B.we go home C.we went home D.we can go home
       
        9) As Commander-in-Chief of the armed forces, I have directed that
        all measures ____ for our defense.(1999.6)
        A.had been taken B.would be taken C.be taken D.to be taken
       
        10) It is vital that enough money __________to fund the project. (1997.1)
        A.be collected B.must be collected C.is collected D.can be collected