Question

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

Answer 1

C
解析：
根據(jù)時態(tài)一致和陳述語序兩方面確定。主句謂語動詞wanted是一般過去時，賓語從句也應該用過去時的某種形式。A雖是過去時，但不是陳述語序；
B、D是陳述語序，但不是過去時，只有C是正確答案。