John and Mary / not / skate
A. John and Mary isn’t skating.
B. John and Mary aren’t skating.
C. John and Mary aren’t skateing.

Random Topics:
Adjectives, Adverbs, and PrepositionsPreference & Future TensePRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTComparative - SuperlativeInfinitivePresent/Future/Past Simple/Present PerfectVerbs: Action, Linking, and HelpingTypes of Sentence StructuresPresent Simple x Present ContinuousThe Structural Types of SentencesOther quiz:
Gerund and Infinitive › ViewThe client claims … the invoice.
A. have paid
B. paying
C. to have paid
D. having paid
Modal Verbs › View
. ___ you please lower your voice?
A. Can
B. Could
C. Able to
D. Should
Comma › ViewChoose the correct sentence.
A. Top Gear has three presenters Jeremy Clarkson, James May and Richard Hammond.
B. Top Gear has three presenters: Jeremy Clarkson, James May and Richard Hammond.
C. Top Gear has three presenters, Jeremy Clarkson, James May and Richard Hammond.
D. Top Gear has three presenters; Jeremy Clarkson, James May and Richard Hammond.
IELTS Vocabulary › View
to produce something in such a way that it makes profit
A. produce profitably
B. advance payment
C. calculate
D. destruction
