[ Subject Verb Agreement ]
Environmental pollution ________ a serious threat to our health.
A. pose
B. poses
Select your answer:

Random Topics:
Past and Past ContinuousGrammar Double Object VerbsArticles & Compound NounsConjunctions and CommasConjunctions and PronounsAnalogyUnless If First ConditionalFunctional Sentence TypesProgressive TensesVocab and GrammarOther quiz:
Grammar › ViewMy bike … last week.
A. is stolen
B. was stolen
C. stole
TOEIC Grammar and Vocabulary Review › View
The office …………. samples of its products.
A. displayed
B. display
C. displaying
D. displayable
