Fill in the blanks in the following seyences with "yet"or"till".1 He learned English for three years at school.___he does not know much about it.2 Mathematics is not very popular;___one can learn a lot in the course.3 I did not start to learn science

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Fill in the blanks in the following seyences with "yet"or"till".1 He learned English for three years at school.___he does not know much about it.2 Mathematics is not very popular;___one can learn a lot in the course.3 I did not start to learn science
Fill in the blanks in the following seyences with "yet"or"till".
1 He learned English for three years at school.___he does not know much about it.
2 Mathematics is not very popular;___one can learn a lot in the course.
3 I did not start to learn science___became a middle school student.
4 They worked hard on the problem ___at last the solved it.
5 This class is an elective;___most of the boys like it very much.
6 He read the story ___he learned it by heart.
理由。

Fill in the blanks in the following seyences with "yet"or"till".1 He learned English for three years at school.___he does not know much about it.2 Mathematics is not very popular;___one can learn a lot in the course.3 I did not start to learn science
yet表示转折而till表示承上启下,有因果关系的意思
1:yet 他学习英语三年了但是没学到多少东西
2:yet 数学不是很流行但是人们可以从中学到很多
3:till 我直到成为一个中学生才开始学自然科学
4:till 他们在这个问题上下了很大功夫直到解决了它
5:yet 这是个选修课程 但是大部分男孩子非常喜欢它
6:till 他读这个故事一直到用心去读

1.Yet,
Yet he does not know much about it.
他仍然不太了解。
2.yet然而
3.till直到上中学才开始学科学
4.till直到解决才停止努力的工作
5.yet然而
6.till直到心领神会才停止读这个故事。

1,2,5 yet
3,4,6 till

1,2,4,5用yet
剩下的用till