OG12-054 recommended 后从句的时态 及 三个并列句的连接
054. The report recommended that the hospital should eliminate unneeded beds,expensive services should be consolidated,and use space in other hospitals
答案A：The report recommended that the hospital eliminate unneeded beds,consolidate expensive services,and use space in other hospitals.
为什么recommended 后面的从句不用过去时态呢，难道是因为这个建议是普遍原则，所以就用一般现在时了。
请大牛们指导一下名词性从句的时态问题，什么时候从句要符合主句的时态。
另，如果主句是现在完成式，从句用什么时态呢？
第二个疑问：The report recommended that the hospital should eliminate unneeded beds,consolidate expensive services,and use space in other hospitals.
OG说should不应该加，因为recommended已经表示建议了，这个原则是否通用？
第三个疑问：如果我把这句话变成三个并列句，应该怎么连接，可以A，B and C么？不讨论累赘问题，只问三个并列句的连接。
The report recommended that the hospital eliminate unneeded beds, expensive services was consolidated ,and space in other hospitals was used. |
