This innovative refrigerator requires no electricity. This will be extremely __________ to people in hot countries like Nigeria.
benefitial
temporary
personal
15
This tough drum (cylindrical container) is an easy and ____________ way to transport water---essential in poor places where people don't have running water at home.
permanent
personal
affordable
15
This hearing aid (sound amplifier), which you put on your ear, is operated by solar power. It's designed for ___________ use and it's so unique and user-friendly.
affordable
beneficial
personal
15
People who live in the desert will _________ having fresh food.
help to
benefit from
allow to
15
This is going ___________ deaf people (who can't hear) ____________ better.
to allow ... communicate
to support ... not communicating
to enable ... communicating
15
This invention will be a great _________ people who can't afford to replace batteries.
beneficial to
helpful to
help to
15
If you feel exhausted when you're playing sports, you shouldn't carry ___.
on
out
off
15
I'd like to take ____ a new sport. It'll help me get into better shape.
up
on
out
15
I can't keep ____ with my friend Roberto when he's running. He's super fast!
up
in
on
15
I really regret (feel bad about) giving ___ tennis. I should take it up again.
on
up
out
15
I'd like to try _____ sky diving. I think it would be exciting.