Remember ________ too much. It’s bad for your health.A. don’t smokeB. not smokeC. not to smoke
His grandfather ______ for twelve years.
________ you've got a headache. You drank too much last night.
In those days, books could only be produced one at a time by hand. __________, they were expensive and rare.
It is clever ________ you ________ me work out the maths problem.
There is ________ in the classroom, so we can see ________.