请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
I recently heard a story about a famous research scientist who had made several very important medical breakthroughs. A newspaper reporter       him why he was able to be so much more       than the average person. What set him so far apart from others?
He       that it all came from an experience with his mother that occurred when he was about two years old. He had been trying to remove a bottle of milk from the refrigerator when he dropped the slippery bottle, spilling its       all over the kitchen floor—a real sea of milk!
When his mother came into the kitchen，instead of       at him, giving him a lecture or punishing him, she said, “Robert, what a great and       mess you have made! I have       seen such a huge pool of milk. Well, the       has already been done. Would you like to get down and play in the milk for a few minutes before we clean it up？”
Indeed, the boy did. After a few minutes, his mother said, “You know, Robert,       you make a mess like this, eventually you have to clean it up and       everything to its proper order. How would you like to do that? We could use a sponge(海绵)，a towel or a mop. Which do you prefer？” He chose the sponge and together they       up the spilled milk.
His mother then said，“You know，what we have here is a failed experiment in how to        carry a big milk bottle with two       hands. Let's go out in the back yard and fill the bottle with water and see if you can        a way to carry it without dropping it. ”The little boy learned that if he grasped the bottle at the        near the lip with both hands, he could make it. What a wonderful       !
This scientist then remarked it was at that moment that he knew he didn’t need to be       to make mistakes. Instead, he knew that mistakes were just         for learning something new, which is, after all, what scientific         are all about．Even if the experiment “doesn’t work”, we usually         something valuable.

A．interviewed B．questioned C．introduced D．considered

A．clever B．creative C．lively D．diligent

A．declared B．required C．informed D．responded

A．contents B．materials C．water D．color

A．smiling B．staring C．yelling D．speaking

A．wonderful B．terrible C．beautiful D．awful

A．usually B．rarely C．generally D．gradually

A．danger B．impression C．damage D．scene

A．whenever B．wherever C．however D．whatever

A．replace B．restore C．repair D．remain

A．cleaned B．took C．gathered D．made

A．meaningfully B．beautifully C．effectively D．professionally

A．full B．empty C．huge D．tiny

A．discover B．create C．think D．observe

A．bottom B．top C．middle D．end

A．lecture B．performance C．lesson D．sight

A．afraid B．awake C．awkward D．horrified

A．conditions B．situations C．equipment D．opportunities

A．observations B．experiments C．researches D．surveys

A．learn B．know C．find D．see