A scientific test or procedure that is carried out under controlled conditions to answer a scientific question.
A. experiment
B. observation
C. investigation
D. field study
Random Topics:
Gerunds and InfinitivesProgressive Verb TensesSimple Present & Present ProgressiveGrammar speak,talk,say,tellModals and ResponsibilitiesVerb Tenses and ModalsGrammar & ReadingPresent Simple TenseSynonyms and VocabularyModal Verbs and ConditionalsOther quiz:
Passive Voice, Question Tag, Prepositions › ViewThe report ______ by the team yesterday.
A. was written
B. wrote
C. is written
D. has written
Tenses › View
I will have been helping my neighbor for a year next month.
A. Future Simple
B. Future Continuous
C. Future Perfect Continuous
D. Future Perfect
Conditional Sentence › ViewMai can’t get the job because she doesn’t speak EL well.
A. If Mai gets the job, she will speak English well.
B. If Mai can’t get the job, she doesn’t speak EL well.
C. If Mai spoke EL well, she could get the job.
D. If Mai could get the job, she would speak EL well.
Grammar › View
Joanne isn’t late for school, ___________ she?
A. is
B. are
C. isn’t
D. aren’t