The boy likes dogs ________ they’re very loyal(忠诚).A.because B.so C.and
I really don’t know _______________.
There will not _________ enough room for __________.
---Mom! May I have some cakes? ---Sorry, there’s ________ left in the box. I will go and buy some for you this afternoon.
-----Where are you going for your winter vocation? ----- We _______ go to Hainan, but we are not sure.
Which is ____________ city, New York or London?