— Tom! Corey has broken the glass. — ______. Such things happen.
It’s crazy of you to spend more time playing computer games than you ______ studying.
At this rate, the forest will be completely _______________ within the next 30 years.
The health official said ______ 12 suspected cases of influenza A (H1N1) were tested negative and ______, so far, this city has reported no case of the virus.
—Hi, Johnson, any idea where Susan is? —It’s class time, so she ______ in the classroom now.
We firmly believe that war never settles anything. It only _____ violence.