阅读下面短文，从短文后所给各题的四个选项（A、B、C、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。Dear Jane, I'm pleased to receiv

阅读下面短文，从短文后所给各题的四个选项（A、B、C、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。
Dear Jane,
I'm pleased to receive your letter     21     about information about China's high-speed trains and the Qingming Festival.
With the developing of China’s     22    , more and more high-speed railways are under     23    . There are several advantages for high-speed trains. The reasons are as follows:
First, it's more     24     for us to go travelling by high-speed train, because they can run as fast as 350 kilometers per hour!
Second, you may find it's more fortable when taking such a train, with more space for more passengers to sit     25    , and more security measures are taken to make it safer.
Further more, high-speed railways     26     only half of the land as freeways need. At the same time they make less     27     because they use less energy and make less noise!
Next I’ll     28     you something about the Qingming Festival.
The Qingming Festival, also     29     the Tomb-sweeping Day, ing     30     April 5 every year, is one of the most important     31     in China.
On this important day, people, often with a     32     family, go to sweep their ancestor’s     33    . Meanwhile, they will     34     sacrifices before the tombs to show their respect     35     the deceased. At the same time, many people will present flowers and some other     36     before the tombs of the martyrs in     37     of their heroic deeds.
However, the Qingming Festival is also     38     with happiness and joy when all the members of a family get     39    . Children are pleased when they are going hiking in the mountain, flying kites with their fellows, or having a big meal with their family members who have been     40     for a long time!
I'm looking forward to your letter.
Best wishes.
Yours
Li Hua
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