【问】 (1) They appointed him chairman.

(2) They appointed him as chairman.

(3) They appointed him to be chairman.

请问上面三种用法哪种是正确的?

【答】 上面三种用法都是正确的。请看下面的实例：

1. She appointed him secretary. (CGEL)

她任命他为秘书。

2. He appointed Wilfrid as his deputy in the city of York. (Scheurweghs)

他任命威尔福利德为约克市的代理人。

3. They appointed him to be chairman.(LDCE)

他们任命他为主席。

请做下面的英语试题：

Benjamin O. Davis. Jr. ____an assistant secretary of the Department of Transportationin 1971.

A. who was appointed B. was the appointment

C. was appointed D. whose appointment was