[ Present Perfect Continuous ]
The boys…
A. isn’t playing
B. aren’t sleeping
C. isn’t sleeping
D. aren’t running

Random Topics:
Simple Present and Present ContinuosSo or SuchCorrelative conjunctionsFuture Tenses and ModalsPresent Continuos TenseConjunction and PunctuationInfinitive and GerundNoun, Verb, AdjectiveIrregular verbsPassive SentenceOther quiz:
Grammar › ViewHe had been working for more than 11 hours. He __________ be tired after such hard work.
A. mustn´t
B. should
C. must
D. have to
Homonyms › View
The tree had one large ___ that looked strong enough to hold a swing.
a. bough
b. bow
Our teacher … angry with us yesterday.
A. was
B. were
Modal Verbs › View
If you want to get there on time, you ___ leave now.
A. must
B. could
C. might
D. have
