.—Why not _______us and have a good time at the party? ---I would love to. ________ I have a lot of homework to do.
I was________tired that I couldn’t go on walking.
The sweet smell of the flowers in the garden comes in_______the open window,making us feel in a good mood(心情). A.on B.with C.through
Did you know that the earth is home to________animals?
The little girl was________nervous that she couldn’t say a word in public.
—How long have Mr.and Mrs.Smith________? —For more than twenty years.