their bombs are always placed in ____ positions to cause as much chaos as possible.

the hotel has a varied program of nightly ________.

the stadium was packed with cheering __________.

the role of scientists is to ___ and describe the world, not to try to control it.

i hope everyone will ____ this discussion.

we don't want to ____ the risk of losing their business.

it took the insurance company months to ________ my claim.

here are 10 easy steps you can take to __________ energy in your home.

we must _______ steps to safeguard our environment against these threats.

biologists ________ animals and plants into different groups.

modern farming methods have led to the total _______ of many species of wild flowers.