Don’t sit on the chair. There ________ on it.
Dave has ___friends here, so he often stays at home by himself and feels lonely.
--- It's so cold today. --- Yes, it's___ colder than it was yesterday.
___ is important for us___ English well.
--- Did Tony buy___ for his mother? --- Yes, he did.
--- Doctor,___do I have to take the medicine? --- Three times a day.