Fill in the blanks in the following seyences with "yet"or"till".
题目
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。
答案
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...
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