If you want better grades,you ______ watch so much TV.答案是shouldn't ,可以用couldn't吗shouldn't ,couldn't ,有什么区别呢

分类: 作业答案 • 2022-02-17 18:56:01

问题描述：

If you want better grades,you ______ watch so much TV.答案是shouldn't ,可以用couldn't吗
shouldn't ,couldn't ,有什么区别呢

答

shouldn't 如果你想更好的成绩，你(不应该)看这么多电视。。。意思更贴切
couldn't: 如果你想更好的成绩，你（不能）看这么多电视

答

shouldn't表示不应该
couldn't表示不可能
如果你想要更好的成绩,你不应该看这么多时间的电视.