[ Vocabulary & Grammar ]
Cultural problems can range from miscommunication to actual conflict, all ____ effective worker productivity and performance.
A. endanger
B. endangers
C. endangering
D. endangered

Random Topics:
Gerund and InfinitivesTenses PracticeZero and First ConditionalsAuxiliary WordsIf/Unless - Conditional type 1Conjunction and PunctuationVerb Forms and PrepositionsPunctuationPast Continuous vs Past SimpleGrammar / PronounsOther quiz:
Adverb › ViewThe beautiful lady smiled ________ when she saw us.
A. softly
B. angrily
C. soundly
D. broadly
Past Perfect › View
We ______ (be) late for the plane because we ______ (forget) our passports.
A. had been / forgot
B. were / had forgotten
C. are / forgot
D. were / forgotten
Grammar › ViewHe hates ____________ for the bus?
A. wait
B. to wait
C. waiting
Grammar › View
We usually _____English every day.
A. studies
B. studying
C. study
D. studied
