They (not finish) their homework yet.
A. not have finished
B. have not finishing
C. have not finished
D. did not finish

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Zero Conditional SentenceVerb AgreementThe Past SimpleDemonstrative PronounsPersonal & Possessive PronounsPresent and Future TensesIndefinite and Intensive NounVerb-ing and InfinitiveVerb PhraseGrammar: Have toOther quiz:
Conjunctions › ViewRevise the following sentences, choosing the correct conjunctive adverb. Add the correct punctuation.
The U.S. Green Building Council promotes environmentally friendly building practices (therefore moreover) the organization promotes architecture that incorporates sustainability in houses and offices.
A. , therefore,
B. ; therefore,
C. , moreover,
D. ; moreover,
First Conditional › View
I…. you my laptop if you …… to be careful with it.
A. will give, promise
B. give, will promises
C. gives, will promise
Homonyms › ViewHe squeezed out a ___ of power at the end of the race.
a. serge
b. surge
Adverbs of frequency › View
He …. goes to the cinema, only 2 or 3 times a year.
A. sometimes
B. rarely
C. usually
D. often
