[ Present Perfect Continuous ]
The machines _____ working today.
A. don’t
B. aren’t
C. isn’t
D. not
Select your answer:
Random Topics:
Past Simple TensesNoun, Verb, AdjectivePast Simple & Past ContinuousPronouns and AdverbsSimple Future - Passivewould should couldGrammar TOEFLConjunctionExclamationFirst vs Second Conditional SentencesOther quiz:
Conjunction › View…………….. he was late, he missed the bus.
A. Although
B. But
C. And
Mixed General Quiz › View
The new homepage also gives access ___ a series of important EU databases.
a. of
b. to
c. at
d. in