When we are unfamiliar with something, we may feel nervous and fearful. The help of others is a good   36   to help us pull through.
I write for a big newspaper, and I wanted to   37   a story about parachute jumping（跳伞）. To make it a realistic as well as exciting   38   , I decided that I had to make a jump myself   39  . Unluckily, I’m not good at any   40  , let alone（更不用说）parachute jumping.
My friend Mr. Smith was willing to give me a   41   . He took me to a ground school. The first day’s   42    included several hours of instruction but not my first drop from a(n)   43 . For this, I had to wait until the following   44  .
The next morning, I was taken to the airfield.   45  , a heavy parachute was put on my back. Then I was   46    to make my way to a small plane which had just stopped slowly on the runway. Once on board, the plane was soon   47   . I began to feel nervous. As we reached one thousand meters, Harry, my teacher, hooked（钩）a   48   from my parachute to a steel ring inside the plane. The line was to pull my parachute    49  after I jumped.
“Get   50  , Henry,” Harry said. I moved carefully to the door. I wanted to   51  , “NO, no, no!” But no word came.
“Jump!” Harry called   52   . “Jump!”
Away from the plane, and down, down I fell, arms stretched. It worked All at once I was very happy. Then I felt a quick   53  . My big parachute had opened! It was the best   54   I ever had. I looked down. There were rivers, trees, fields and houses. I heard the soft sound of the air. This was   55  .

 -- Do you think Allan came by taxi?

-- No. If he had, I don't believe he ______ his bike here.

I want to let you know about an event that changed my life many years ago. We were living in College Station, Texas and my wife and I were on our way home from Houston, Texas one Sunday morning. We decided to stop at a local gas station to get something to eat since we had enough time.
When we finished, we got back into our car and before I started it, we noticed a homeless man standing in front of the building. His clothes were worn and it looked as if he didn’t have any money. It was cold and I was sure he wanted something to drink. However, it was not this that moved(感动) me.
　　A dog was also walking up to the front of the building. Being a dog lover, I noticed that the dog was a mother and that she had just had some puppies(小狗). She was hungry and weak and I felt so bad for her. I knew if she didn’t eat soon, she and her puppies would not live on.
　　People walking by didn’t even notice her. She might not have been as pretty and clean as most, but she still deserved(值得) better. But we still did not do anything, someone else did. The homeless man, who I thought could not afford anything to eat, went back into a store and bought dog food with all the money he had.
I know that this story isn’t as inspirational as most stories, but it plays a great part in our lives. You see, that was Mother’s Day weekend. And a lot of people forget that some animals are parents too.
【小题1】From the passage we can know that______.

—Do you think the thief entered through the back door?
—No, if he had, I don’t believe he ______ the living-room window.

—Do you think the thief entered through the back door?

—No, if he had, I don’t believe he ______ the living-room window.

A．would break       B．broke            C．would have broken  D．had broken