It has been 20years s I graduated from college．
because； say； happy； one； for |
Music helps us exercise﹣but why does it have this effect？Experts say there are two main reasons．The（1） is simple：music takes our attention away．When we listen to a song we like，our brains focus on the music．For example，after we exercise（2） 20 minutes，our body might be tired．But we may not feel this immediately（3） we are listening to music．So we can exercise a little longer．
Music also makes us want to move． When we hear dance music， for example， we naturally start to move to the beat． A positive song also puts us in a good mood， so we feel much（4） ．This gives us energy and helps us exercise longer． Music with a quick and continuing beat is good for exercising． "But the music shouldn't be too fast，"（5） Dr. Costas， a famous sports expert． In general， songs in the range of 120﹣140 beats per minute （BPM） are the best．
The writer uses his life in his writing． （daughter）
Bill was （踢）a ball in the yard when I saw him．
According to the latest census（人口普查），China has a p of 1，411，78 million.
When a person v a foreign country，it is important to know how to ask for help politely.
The young should do meaningful things instead of with phones all day. （play）
These two sweaters are so expensive that I can afford n of them.
Soft music can help us fall faster and wake up less during the night. （ sleep ）
Helen enjoys （listen） to soft music when she is tired.
﹣﹣﹣ Where shall we watch the light show tonight？
﹣﹣﹣ On the top of Lianhua Mountain． It's in the centre of our city．（ ）
A．backB．middleC．front
Intelligent house furnishings（智能家居） are （wide） used in people's homes now．
The letter "x" often represents a（n） （known） number in some Math exercises．
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