[ Vocabulary ]
essential
A. biodiversity
B. temperate
C. instrumental
D. conservation

Random Topics:
PrepositionsModal Verb in Passive VoiceConjunctions, Interjections and DeterminersVerb Tenses and ModalsDegrees of ComparisonVerb TensesCommasComparative and Superlative AdverbsPronouns/ Present TenseGoing To Be and WillOther quiz:
Tenses › ViewWho ………. to invite to the pool party?
A. have we forgotten
B. have we forgot
C. we have forgotten
D. we have forgot
Modal Verb › View
Our company provides free advice on the use of our products. You _______ pay us.
A. must
B. have to
C. needn’t
D. mustn’t
Phrasal Verb › ViewDon’t _____________! If you keep practising, you will be a great basketball player someday.
A. take up
B. show up
C. pick up
D. give up
Modal Verbs › View
Did Peter go downtown by car or by train?
He … by train, because his car was in the mechanics.
A. must go
B. has to go
C. had gone
D. must have gone