[ Adverb Clause ]
We cannot conduct the experiment __________ we receive the necessary equipment.
A. until
B. before
C. if
D. though

Random Topics:
Quantifiers / Prepositions of Time and Comparative AdjectivesConjunctions in Complex SentencesAdjectives or AdverbsObject PronounsModals Deduction: cant /mustTag QuestionRelative & ModalsPrepositions and Preposition PhrasesTenses: Present simple, Past Simple, Future SimplePresent Simple and Present Continuous TensesOther quiz:
Pronouns, Sentence Structure, and Figurative Language › ViewWhich sentence correctly uses an idiom?
A. He was as busy as a bee.
B. He was very busy.
C. He was busier than usual.
D. He was busy with work.
Present Perfect › View
What is something you have never done?
A. I never have eaten burritos.
B. I eaten never burritos.
C. I have never eaten burritos.
D. I have eaten never burritos.
Relative Pronouns and Adverbs › ViewIs this correct????
The box, that was sent to me, is sitting outside the mailbox.
A. YES
B. NO
Comparison › View
In my opinion, safety is __________ important factor to rank a city.
A. the second
B. the second most
C. second the most
D. most the second