formal, written communication needs to be clear and to the point, without spelling or grammar ________, and in a formal register.

scientists can also ____ a role in improving energy efficiency in their laboratories.

i could sit here and argue with you till the ______ come home, but it wouldn't solve anything.

she'd been seeing the boy for a while, but didn't want her parents to __________.

i've never _______ to anyone like i do to you.

years of doing meticulous research had made her very ________ in her working methods.

people often behave irrationally when they are _______ stress.

they may feel very angry at people who make fun _____ them.

the medical community continues to _____ progress in the fight against cancer.

the constitution is __________ enough to change as the organization develops.

which features do you _______ when choosing a car?