There must be a dog sitting behind it .为什么sit 后面加ing
There must be a dog sitting behind it .为什么sit 后面加ing
there might be a big dog ____ there.A sit B sat C sitting
there might be a big dog ____ there.A sit B sat C sitting 选C
It will be snow.后面不加Y,为什么there will be snowy and.后面加Y?
A dog is on the chair A.sit B.sitting C.siting D.to sit
must后面动词加ing吗
must后必须跟be吗?It must be a dog是正确的 It must is a dog是错的吧
英语 这里划线句子must 后面为什么要加be
为什么like后面加ing
请解释为什么第一个must后面加be 而第二个must后面没有加be
It must still be there,(
it must still be there.