we are doing nothing but ---- there A sit B sitting 应该选哪个

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 21:45:36
wearedoingnothingbut----thereAsitBsitting应该选哪个wearedoingnothingbut----thereAsitBsitting应该选哪个wearedoi

we are doing nothing but ---- there A sit B sitting 应该选哪个
we are doing nothing but ---- there A sit B sitting 应该选哪个

we are doing nothing but ---- there A sit B sitting 应该选哪个
应该 sitting,这里是对应前面的doing
如果前面是do,后面就用动词原形,比如
we can do nothing but wait

sitting

选B,因为are是现在进行时态,所以动词do是用doing,同样的sit也要用ing形式,要注意双写

应该选B 因为前面是be + ing
如果前面的动词时do 则应该选A了