THe course _______(涉及)many topics,such as travel transport and hotels.可以填covered吗?
问题描述：
THe course _______(涉及)many topics,such as travel transport and hotels.可以填covered吗?
答
THe course __involved/covered_____(涉及)many topics,such as travel transport and hotels.
空上可填involved/covered那covers呢？也可以，一般现在时态就填covers./involves 一般过去时态就用involved/covered