Please remember _______ the plants while I’m away.
On top of the books ____ the photo album you’re looking for.
____ time going on, our school becomes greener and more beautiful.
He has gained ______ rich work experience there and is showing _______ great progress.
. She learnt both business and history, but she knows________of them well, though she can speak on subjects in general.
I am not particular about laptops, but________, I prefer IBM to Sony.