Topics: Grammar for TOEFL
__ we understand the problem, we cannot offer a solution.
A. Unless we gather all the necessary information and consult with the experts
B. If we receive more data, it will be easier to analyze and find the right solution
C. While we are waiting for additional details from the engineering department
D. Because we haven’t yet received the final report, it’s hard to take any action
Select your answer:

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Definite, Indefinite and Zero ArticlesSubject and Verb AgreementGerunds + To InfinitiveModal Verbs - ObligationTOEFL Adjective and AdverbGrammar - Present and Past PassiveGrammar - Be going toSimple Present Tense with Adverb of FrequencyAdjectives and AdverbsGerund Subject or ObjectOther quiz:
Prepositions › ViewThere is no doubt that Adam is very good ___________ telling jokes.
A. At
B. Over
C. Of
D. With
Phrasal Verbs › View
He turned _ all the lights before he went to bed.
A. off
B. over
C. down
D. of
