[ 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:
Adjective › ViewChoose the sentence that shows that two things are not the same.
A. The planet Neptune is as large as some stars.
B. Our sun is as big as some other stars.
C. Our Earth is not as big as the sun.
Vocabulary › View
Jenny is very …………………… and she always does her best to help.
A. accommodate
B. accommodated
C. accommodating
Tenses › ViewHe ……………… 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
