After a parrotfish eats algae-covered coral, the coral travels through the fish’s digestive system, and then it is deposited in the reef as white coral sand.
A. simple
B. compound
C. complex
D. compound-complex

Random Topics:
Modals and Modal PerfectsSentence TransformationAuxiliary VerbsPast Perfect & Past SimplePast Continuous and Past Simple TensePrepositions Of PlacePhrases and TensesTensePresent Perfect Simple vs ContinuousVocabularyOther quiz:
Grammar › ViewAnn likes ……………….. but she hates ………………… up.
A. cook/ washing
B. to cook/ wash
C. cooking/ washed
D. cooking/ washing
Vocabulary and Grammar › View
She _______(study) in the library when her class ____________(begin).
A. studies/ will be beginning
B. will be studying/ begins
C. will be studying/ begin
D. study/ will beginning
Grammar › ViewWhat time ….
A. the train leaves?
B. does the train leave?
C. is the train leaving?
D. leaves the train
Grammar › View
The test started at half past eight, but Tom got to the classroom at _______. He was fifteen minutes late.
A. a quarter past eight
B. a quarter to nine
C. five minutes before nine
D. fifteen minutes after nine
