The …………………. gives us oxygen and a home for a lot of sea animals
A. ground
B. coral reefs
C. fish
D. whale

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Grammar & Vocabulary › View. You are describing a difficult situation in the past and how you overcame it. Which sentence is correct?
A. When I had to move to another country, I was feeling homesick at first, but then I adapted.
B. When I have to move to another country, I felt homesick at first, but then I adapted.
C. When I moved to another country, I felt homesick at first, but then I adapted.
D. When I move to another country, I feel homesick at first, but then I adapted.
Grammar › View
He __________ ride a bike because he never learned how.
A. can
B. can’t
C. might not
D. couldn’t
Idioms › View“Time flies” means __________________.
A. when a fly lands on a clock
B. when time going very moving slowly
C. your watch flies off your wrist
D. time goes by very quickly
Comparative Degree (Adjective) › View
The sailfish is the _______________ fish in the ocean.
A. Faster
B. Fastest