Question

He failed in the exam again because he ________ confidence to pass it．

1. A.
   lacked
2. B.
   was lacking
3. C.
   lacked of
4. D.
   was lacking of

Answer 1

A
句意为：“他又一次没通过考试因为他缺乏通过的信心。”lack用作及物动词，D项通常是be lacking in搭配。