[ Grammar ]
_______ withstands testing, we may not conclude that it is true, but we may retain it.
A. If a hypothesis
B. That a hypothesis
C. A hypothesis
D. Hypothesis

Random Topics:
Modals "Should"TOEIC Grammar and Vocabulary ReviewVerbs: Will & Going toSimple Present Negative and QuestionModal Verbs and Gender NounsTenses and OpinionsMixed GrammarPersuasive TextGerunds, Infinitives and ParticiplesGerunds, Infinitives and Modals of PossibilityOther quiz:
Gerund vs. Infinitive › View Parking in the driveway in front of school is prohibited.
A. Partciple
B. Gerund
C. Infinitive
Grammar Comma Usage › View
. In the sentence “One by one boys were stepping out of the crowd and walking over to the long pole,” where should a comma be added?
A. After “one”
B. After “boys”
C. After “crowd”
D. After “walking”
Present Perfect Simple vs Continuous › ViewWe __________ (talk) about this for too long.
A. have talked
B. have been talking
Grammar › View
You ……………. pay attention to the road when you drive
A. must
B. mustn’t
