[ Grammar ]
The number of inhabitants on the planet ____ arriving at unsustainable levels as it confronts deficiency of assets like water, fuel and food.
A. is
B. are
C. have been
D. had been

Random Topics:
Modals VerbGrammar, Literature, and VocabularyPreposition (at,in,on)Passive Voice - Past SimpleReported Speech and TensesFamily VocabularyPrepositionLinking VerbPresent Simple and Modal VerbsOrder of AdjectivesOther quiz:
Grammar › View………….Linh………….her sister like listening to pop music.
A. Both/and
B. Either/or
C. Neither/nor
D. Not only/ nut also
Mixed General Quiz › View
A ___ is a measure of the amount of electrical force required to create one amp of current.
a. bolt
b. volt
He ……………… ill whenever he eats strawberries. He’s allergic to them.
A. fall
B. falls
C. is falling
D. fell
Articles and Prepositions › View
I’m very proud _____ my son. He won the first place.
A. of
B. for
C. at
D. in
