Nobody ________ the answer to the question.

1. A.
   known
2. B.
   know
3. C.
   knows
4. D.
   was knowing

The answer _________ the questions are all right.

1. A.
   of
2. B.
   with
3. C.
   for
4. D.
   to

The answer ______ this question is wrong．

[　　]

A. to　　　B. of　　　C. in　　　D. on

[　　]

The teacher wanted to know ______.

1. A.
   why was he late for school
2. B.
   how he can answer this question
3. C.
   if he could finish them on time
4. D.
   whether his parents are strict with him