为什么是what is Jane(looking for)不是look for?为什么是

is this what you were looking for?为什么用w 为什么是ask for “for”是什么意思,为什么不是ask to 为什么是what is she doing for vacation.而不是what does she do for v 为什么是looking different而不是look different is out looking for 里面有什么词组 是be out表示外出 look for是寻找的意思么 It is quite important for us to keep healthy.为什么是for不是to? 为什么是 look for it 而不能是 look it for? every time i went back looking for sb为什么用looking而不是look~= = Jim is never late for school,is he 为什么是is he 不是does he Here _______(be) a letter for you.这里be为什么是is 还有为什么不是have whom are you looking for 为什么是用 whom 为什么不用who What is the girl looking for?