——There must be a dozen pens in this house but I can never find one when I need one.——Keep looking. ______is sure to turn up.
Only when___________ according to the directions can the medicine be quite effective.
To be successful, you need to remember that ___________you might be very busy, you need to be energetic and enthusiastic.
Not until all the fish died in the lake __________ how serious the pollution was.
A student at a Nevada middle school opened fire on campus, wounding two l2-year-old boys and__________ a math teacher.
It never will rain roses. __________ we want to have more roses. we must plant trees.