He asked his father        .

完形填空
I have had thousands of classes since I started school nine years ago. But only one ___1__ was the most important.   It happened last term just after I had got a __2__ result in an exam. I was sad and had lost my confidence. I decided to go to a class which can tell me how to be __3___.   The speaker walked into the room. But he did not start talking __4_ a teacher. Instead, he held up a twenty yuan note(钞票)!
“Who wants this?” he asked. Unsurprisingly, __5__ of us in the class held up our hands.   The speaker smiled. Then he put up the note on the blackboard and asked the same question. Again, we all put up our hands. The speaker smiled again, but __6_ nothing. Suddenly, he threw the note onto the floor! Then he asked the same __7_ a third time.   I didn’t __8__ what the speaker was doing. Why was he asking the same question again and again? I didn’t know what to do. I wanted the note, __9_ I put my hand up again. After a while, he __10__ the note and started to laugh. “you have all just told me how to become successful,” __11_ said to us with the note in his hand.   “The note is worth twenty yuan. It is __12__ worth twenty yuan, even though I throw it on the floor. You are like the note. No matter __13__ happens to you, you still have your worth.”   When I heard those words, I was deeply moved. Suddenly, I _14_ I was worth a lot. I may have done badly in an exam, but it doesn’t __15__ I can’t do well in the future. If I believe in myself, I will be successful!

— When did the terrible earthquake in Japan happen?

— It happened ____ 13:46 ____ the afternoon of March 11^th .

A．on; in            B．at; on             C．at; in             D．on; on