[ Present Tense ]
Languages _____ very fast. Half of world’s languages will disappear by 2100.
A. disappear
B. are disappearing
C. have disappeared
D. have been disappearing

Random Topics:
1st & 2nd ConditionalsAuxiliaries VerbPrepositions and AdverbsModal Verbs and ConjuctionsVerbs and Possessive AdjectiveGrammar - SimilesPast Continuous TenseGrammar - either...or, neither...norPronounsVocab and GrammarOther quiz:
Modal Auxiliary › ViewWhich sentence has a modal showing possibility?
A. There are many cats that would make good pets.
B. He will be at home tonight.
C. It might rain tomorrow.
D. We should take him a card.
E. You have to tell Dad
Adjective › View
WHAT DO YOU CALL THE PEOPLE YOU CAN TRUST OR RELY ON?
A. Unreliable
B. Reliable
C. Jealous
D. Moody
When the sentence comes to an end, we ____.
A. put comma
B. put full stop
C. do not put anything
Vocabulary › View
He placed security cameras in the hope of …….. shoplifters.
A. rejecting
B. postponing
C. deterring
D. removing