—Keep ____ in mind that you have to be home by 10 o’clock.—Ok, I will.
When asked about their opinions about the schoolmaster,many teachers would prefer to see him step aside __________ younger men.
We've offered her the job, but I don't know ______ she'll accept it.
The fridge is __________ for one year. It means that the company that makes it promises to repair or replace it if it breaks down within a year.
Among all the presents __________ a very nice watch, which was given by my best friend.
I bought a new MP4, which was the __________ of all my classmates.