[ Vocabulary ]
What is the noun form of “collaborate”?
A. Collaboration
B. Collaborator
C. Collaborate
D. Collusion

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would should couldCommon Grammar Mistakes and Spelling TipsVocabulary and DefinitionsModal Auxiliaries and To Be VerbsCommon ErrorCountable & Noncountable NounsIndependent ClausesNoun Verb AgreementEmployment VocabularyPhrases & ClausesOther quiz:
Conditionals › ViewIf I ___the cleaning by 6 o’clock, I’ll go to the cinema
A. have finished
B. finish
C. am finishing
If vs. Whether › View
… you do excessive exercise, it may hurt your heart.
- if
- whether
- if/whether
Modals › View
I think everybody ________________ learn a foreign language.
A. had better
B. should
Grammar › View
Soha _______ helps in the kitchen.
A. never
B. doesn’t
C. does
