— David, keep ______ in mind that you have to be home by 10 o'clock. — OK, Mom, I will.
The news that Obama was elected president of the United States is not mystery.
________the programme,they have to stay there for another two weeks.
The two phrases are similar ____ structure but different _____ meaning.
There was a large box behind the door and Peter couldn't _____ falling over it in the darkness.
Our car _____ at the present speed until it reaches Qingdao at about nine o’clock tonight.