In the lecture room ___ many students reading their books (sit)

问题描述:

In the lecture room ___ many students reading their books (sit)
为什么用SAT而不用SITTING
如果用SEAT用什么行首呢

satsat 作谓语,这是个倒装句正常语序是:Many students 【sat】in the lecture room reading their books=Many students 【were seated】in the lecture room reading their bookssitting 是个分词,非谓语动词,不能...