请高手给我讲解下这个题目，谢谢

ersonName>8ersonName>. Appointments to the United States Supreme Court and all lower federal courts ____ be the President with the advice and consent of the Senate.

(A) making

(B) to make

(C) are made

(D) have made

答案是c，我根本就没看懂，请高手指教下，谢谢

ersonName>ersonName>1ersonName>0ersonName>.One of the basic principles of wildlife conservation involves __      adequate natural food and shelter to maintain populations of each species in a given habitat.

(A)the provision

(B)that provision

(C)to provide

(D)providing

d，involve 后面接 ing形式？固定用法

ersonName>ersonName>1ersonName>ersonName>3.The chief justice of the United States presides over the Supreme Court during oral arguments and in conferences __    。

(A)of which decisions concern

(B)have important decisions

(C)that important decisions

(D)concerning important decisions

a ,d 那个对？

谢谢

1. Appointments to the United States Supreme Court and all lower federal courts ____ be? the President with the advice and consent of the Senate

黑色划线部分是主语和施动者，句子缺谓语，而且是被动形式。后面的be 是不抄错了，应该是by吧。两个划线名词后面都是介词结构的修饰语，做填空时候可以不看。

2 可以这么记。另外A、B的名词不适用动宾结构，C不定式表目的或将来。

3 D concern及物动词，直接带宾语。即使加介词也不会是of.

谢谢

第一个就是be,所以一直看不懂，再次表示感谢

读不懂为什么会用be 不过我猜第一句出自美国宪法 明天有时间好好查一查 我相信不会是be 呵呵 maybe so