In one week, the community came together to   28   it. What once was a blank wall was transformed into two beautiful French doors   29   out to a wheelchair—accessible ramp(斜坡)and an updated porch. Abe and his mother even    30    redecorated Noah’s room with all his favorite characters，and neighbors    31    their helping hands to yard work.

The day finally came for Abe, his mother, all their friends, family and other volunteers to    32 Noah. When his mother   33    Noah out of the doors and down the ramp, Noah’s smile was    34    . Sometimes, we can construct a small door that will lead to a big     35    for someone else.

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

As we all know, there are many kinds of pollution all over the world, air pollution, water pollution, noise pollution and so on. Although we can’t save the world in a short time, we can take some measures to protect       36    . For example, we can prevent people throwing litter; we can sort the rubbish in the community; we can drive less and produce less carbon dioxide.

       37     (actual), there is a new recycling program at our school, which aims to help us create     38      better environment. The recycling we’ve planned is simply a three-part program: sorting, collecting and delivery. The first part---sorting is also the     39      (hard) one. Most people don’t like taking the time to do the     40     (separate) of the rubbish and this is usually why most recycling      41   (program) fail. However, we have reasons    42     (believe) that our words will work. From now on, instead of seeing the usual black rubbish cans all over the school, you      43       (see) three different colors of rubbish cans. Pink cans are for paper, blue cans for bottles, and white ones for all other waste. After the rubbish      44    (sort), it needs to be collected and then taken       45       different rubbish recycling centers.