[ Vocab Checking ]
Air pollution exerts an adverse effect on people’s health, especially the … system
A. digestive
B. nervous
C. respiratory
D. cardiovascular

Random Topics:
Conditional Sentences Type 0, 1 and 2Grammar - Nouns, Verbs, and AdjectivesHow much or How many?Verb Moods and Vague PronounsGrammar - much, many, a lot ofTOEIC GrammarCommunicative GrammarIntermediateAction VerbClauses and GerundsOther quiz:
Gerund and Infinitive › ViewLisa once dreamed of ___ (sing) in front of ten thousand people.
A. to sing
B. sing
C. sings
D. singing
Grammar › View
A synonym for “rude” is _______________
A. inpolite
B. impolite
C. unpolite
D. dispolite
Prepositions › ViewJohn’s in trouble because he tried to cheat _______ the Maths test and the teacher caught him.
A. in
B. on
C. for
D. with
Vocabulary › View
determined, committed to a belief or plan, impossible to persuade
A. stern
B. resolute
C. devoted
D. enthralled
