telephone--（invented)by a scientist many years ago 是be还是was 另外怎么才能学好英语?
2019-03-31
telephone--（invented)by a scientist many years ago 是be还是was 另外怎么才能学好英语?
优质解答
was
从题目的many years ago 可判断应是过去式.
学好英语要培养自己的兴趣,多花时间,不懂的多向老师同学请教.
was
从题目的many years ago 可判断应是过去式.
学好英语要培养自己的兴趣,多花时间,不懂的多向老师同学请教.