a group of the same types of animals, insects, or plants living together in a particular place
A. ecology
B. colony
C. source of food

Random Topics:
Perfect TenseFrequency AdverbsAlthough, Though, In spite of, DespiteVocabullary TestVerb-ing and InfinitivePassive ModalsPronunciation and VocabularyTypes of Simple SentencesIndefinite PronounsSynonym and AntonymOther quiz:
Grammar › ViewThe actor and actress (smile/smiles) and (wave/waves) at the crowd.
A. smile and wave
B. smiles and waves
C. smile and waves
D. smiles and wave
Grammar › View
It’s not necessary to go to school on Saturdays.
You ………………to school on Saturdays.
_
A. shouldn’t go
B. have to go
C. mustn’t go
D. don’t have to go
Grammar › ViewHow many students in your class ….. from Korea?
A. comes
B. come
C. came
D. are coming
Modal Verbs › View
Tom went on and on apologizing about it, which was quite unnecessary.
A. Tom can’t have apologized. I quite understand.
B. Tom shouldn’t have apologized. I quite understand.
C. Tom wouldn’t have apologized. I quite understand.
D. Tom needn’t have apologized. I quite understand.