His casual clothes were not ______ for such a formal occasion.
—What’s that noise, John?—Sorry, Linda.I forgot to tell you.The school library ______.
The iPhone 4S is Apple’s first major hardware on the market ______ the Oct.5 death of co-founder Steve Jobs.
Don’t bother me.I am listening to the birds ______.
He__________from his seat and answered the question__________by the teacher.
We prefer__________alone rather than__________.