[ Present Perfect Continuous ]
They_____________ been ______________all day for the concert.
A. has…practise
B. have…practise
C. has…practising
D. have…practising

Random Topics:
Future Tense VerbModal Verbs of Certainty and PossibilityVerbals and GerundsTenses & PassiveDirect-Indirect SpeechNouns as AdjectivesInfinitives and ING FormsSpeech TensesModal and Relative PhrasesApostrophes and GrammarOther quiz:
Grammar › ViewWhat conjunction would you add to combine these two clauses?
I am tall
My brother is taller
A. I am tall, and my brother is taller.
B. I am tall, but my brother is taller.
C. I am tall, or my brother is taller.
D. I am tall, so my brother is taller.
Modal Verbs › View
You……………….smoke in this room. It’s not allow.
A. can’t
B. shouldn’t
C. won’t
D. don’t have to
Describing Words › ViewThe English questions are very ……………. .
A. boring
B. difficult
Phrasal Verbs › View
Would you ____ out this survey? It will only take 2 minutes.
A. complete
B. visit
C. fit
D. leave