[ Adverb Clause ]
__________ the experiment yields consistent results, we can draw valid conclusions.
A. Unless
B. After
C. While
D. Because

Random Topics:
AbilityQuantifiers and AdjectivesFuture Tenses, Conditionals and ProfessionsAdverbial Clauses of Manner and ResultGerund NounArticles & PrepositionTenseAuxiliary Verbs, if, unless and ModalModals of DeductionAdverbs by TypeOther quiz:
Sentence Structure › ViewWe ran out of milk, I went to the store to get more.
A. milk. I went
B. NO CHANGE
C. milk, I went
D. milk; I went
Asking for and Giving Opinion › View
_____________children should play outside more rather than playing video games.
A. I can’t believe
B. I learn that
C. In my opinion
D. Do you think that..
E. I totally understand
So - Too - Either - Neither › ViewMai doesn’t like reading science books, and Hoa doesn’t __________.
A. so
B. too
C. either
D. neither
Grammar and Vocabulary › View
If people ______ on Mars, they _______ need a biosphere.
A. lived / would
B. will live / will
C. live / don’t