If more trees ________ , our city will be more and more beautiful.
They found difficult to finish the work in such a short time.
--The factory wants to make more cars with _____money. --I think it's impossible.
-- You look_____. Why?--I lost my ID card.
I met Li Lei_____ hospital last Sunday. He was ill_____ hospital then.
— I didn’t make any progress in English. — Oh, _________ Never.