[ Tenses ]
They are studying hard.
A. Present Continuous
B. Present Perfect
C. Present Simple

Random Topics:
Past SimpleVerb FormConditional Sentences Type I, IIPlaces in TownGrammar (either..or.. and neither..nor..)So / Neither / Either / TooAuxiliary Verbs & Question TagsVerbs and Possessive AdjectiveArticles and PrepositionsVerb PhrasesOther quiz:
Modals › ViewIf you have a pet dog, you _____________ feed it every day or it will die!
A. have to
B. have
C. has to
Present Simple › View
my aunt ____________ a big house
A. has
B. have
C. having
D. does have
Vocabulary › ViewA long open porch usually with a roof.
A. Ghastly
B. Verandah
C. Wistful
D. Revulsion
Grammar › View
. The company is not doing poorly; _______, profits actually rose last year.
A. under no circumstances
B. apart from this
C. on the contrary
D. despite this
