阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
In the United States there was an unusual story telling of the daughter of an engineer．One day 1walking along the bank of a lake, the girl happened to see 20 eggs laid by a wild goose．After some time the girl_2_the mother would not return to the eggs and she 3to take them home．There she carefully 4the eggs in the heat of a lamp．Several days 5, the eggs broke and the baby geese came into the 6Geese are known to take the first living thing 7they see as their mother．Thus, to these 8geese, the girl was their mother．
As they grew, the girl was able to 9her birds to run across the grass, but she could not teach, them to _10_．The little girl became increasingly worried about this, both when 11and in her dreams．Suddenly, she thought_12_a clever idea: she would fly a plane to guide them in 13．She asked her father for a plane and he made a small one for her．Caring about 14safety, the father Hew the plane himself．However, the birds didn't 15him．They all slept in the grass 16.
The girl was so worried about it that one day the girl_17_into the plane and started it．Soon the plane left the_18_．Seeing their mother in the air, the birds 19expanded their wings and 20She flew the plane freely in the sky, with her young birds following．
1.A．since B．after C．while D．because
2.A．realized B．expected C．imagined D．admitted
3.A．helped B．decided C．afforded D．agreed
4.A．placed B．protected C．treated D．examined
5.A．ago B．out C．later D．long
6.A．family B．house C．home D．world
7.A．what B．which C．that D．who
8.A．great B．big C．shy D．young
9.A．ask B．lead C．want D．allow
10.A．fly B．race C．swim D．sing
11.A．asleep B．away C．around D．awake
12.A．of B．through C．over D．back
13.A．sky B．heaven C．flight D．plane
14.A．his B．her C．their D．its
15.A．respect B．remember C．follow D．receive
16.A．sadly B．instead C．hardly D．too
17.A．climbed B．looked C．drove D．fell
18.A．house B．floor C．water D．ground
19.A．secretly B．disappointedly C．patiently D．immediately
20.A．looked away B．set out C．went by D．turned back
It's said that going to bed early and getting up early ____a widely accepted good habit．
A．are B．is C．were D．was
____is known to us is that China has won five gold medals in the 2010 Winter Olympic Games.
A．It B．As C．What D．That
Medicine should be placed ____children's reach to make sure of safety．
A．with B．within C．out D．beyond
—I finished all my work today．
—If____, you can help others with their work．
A．so B．not C．possible D．ever
—Remember the first time we met?
—Sure．You ____in the supermarket．
A．shopped B．have shopped C．had shopped D．were shopping
