—Do you know ____ made him successful in his career?—Yes. His hard work and determination, of course.
It was several years ________ I realized ________ David had lied to me.
The project will help people understand the many threats to the natural environment ________ endangered plants and animals live.
—How do you think I can make up with Johnson? —Set aside ________ you disagree and try to find ________ you have in common.
—What do you think of the news in today's newspaper? —We shouldn't ________ the trouble of helping others only because what we do may invite trouble.
—I think that every need of the customer should be attended to. —________.