[ Tenses ]
The air in some big cities ____________________ more polluted
A. is becoming
B. becomes
C. will become
D. became

Random Topics:
First ConditionalFamily Members and Present SimpleVerb + InfinitiveVerb Tenses and UsageGrammar and PrepositionsCoordinating ConjunctionVerb and PrepositionModals and Active and Passive VoiceQuantifiers and ArticlesDefinite and Indefinite ArticlesOther quiz:
Some vs. Any › ViewDo you know __ famous people ?
a. some
b. any
Grammar › View
_______of what you say, I still believe Arsenal can win this game.
A. In spite
B. Despite
C. Although
D. No matter
Grammar - Place and Movement › ViewAnother word that means the same as ‘next to’ is ….
A. over
B. through
C. beside
Grammar and Vocabulary › View
Bill is going to …… his son from school and take him to basketball practice.
A. drop off
B. pick up
C. set up
D. point out
