几道sat语法题求解1.Economic conditions demand (not only to cut wage

几道sat语法题求解
1.Economic conditions demand (not only to cut wages and prices but also to reduce) inflation-raised tax rates.
A 如上
B we not only cut wages and prices but also reduce
那个we是啥?不是us吗?demand后面不加to?
2.According to frend,the aim of psychotherapy is to trace newrotic symptoms back to their unconscious roots and expose these roots to mature,rational (judgment,thereby depriving them of their compulsive power).
A.如上
B.judgment,thereby it deprives them of their compulsive power.
depriving主语是什么?我选B的理由是it指psychotherapy,哪里错了?
3.By the time we arrive in Italy,(we have travelled through four countries)
A.如上
B.we had travelled through four countries.
C.we will have travelled through four countries.
我想问如果是By the time we arrived in Italy,应该怎么接?主要是想举一反三

we"我们",泛指包括说话人在内的群体.在此句中“我们不仅降低工资和物价而且减少...”,“我们”应该是有权力降低工资和物价的人或集体,如政府机构.
we不能改为us,因为这是从句的主语,需要主格而不是宾格.从句的引导词that被省略了.
demand后面能跟不定式,如：
I demand to see the manager. = I ask to see the manager. （我要求见经理.）
depriving的主语是the aim of psychotherapy,即the aim of psychotherapy is to deprive them of...
而thereby depriving them of their ...意思是“继而使他们失却冲动”.其中,depriving是伴随状语,不需要主语了.
这个结构是“By+将来的时间,主句”.这种情况下,主句时态为将来完成时.句子意思是：等我们到达意大利时,我们将已经穿过了四个国家.另例：By 2050, China will have been the only superpower in the world.