问题描述：
通过下面一句话,
How many lessons at most may the primary students have in a week?
A.19 B.20 C.21 D.22
American schools begin from September after a long summer holiday.There are two terms in a school year.The first is from September to November,and the second is from February to June.Most American children begin to go to school at five.Most students are seventeen or eighteen years old when they finish high school.
Primary students don't have many to learn in the school at weekends.They learn language-- English,math,sience,dancing,singing and so on.Most students'favorite subject is science.
High school students take only four or five subjects each term.They are language--English or Spanish,math,chemistry,history,biology,physics and so on.After class,they can do many interesting things,such as playing football,dancing,sining,painting and taking photos.
After high school,many students go to college.They usually have to pay a lot of money.So many college students work after class.
并解释一下为什么选择该选项.
How many lessons at most may the primary students have in a week?
A.19 B.20 C.21 D.22
American schools begin from September after a long summer holiday.There are two terms in a school year.The first is from September to November,and the second is from February to June.Most American children begin to go to school at five.Most students are seventeen or eighteen years old when they finish high school.
Primary students don't have many to learn in the school at weekends.They learn language-- English,math,sience,dancing,singing and so on.Most students'favorite subject is science.
High school students take only four or five subjects each term.They are language--English or Spanish,math,chemistry,history,biology,physics and so on.After class,they can do many interesting things,such as playing football,dancing,sining,painting and taking photos.
After high school,many students go to college.They usually have to pay a lot of money.So many college students work after class.
并解释一下为什么选择该选项.
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