Don't get that ink on your shirt, for it______. 

—Did you watch the movie Mei Lanfang in the People’s Theatre last night?— I had planned to, but it ________ hard all the time.

 —Could I use your car tomorrow morning?—Sure. I ________ a report at home.

—Why does the lake smell terrible?—Because large quantities of water ________.

Every few years, the coal workers ___________ their lungs X-rayed to ensure their health.