[ Yes-No Question ]
The passengers have been waiting for thirty minutes.
- Have been the passengers waiting for thirty minutes?
- Have the passengers been waiting for thirty minutes?

Random Topics:
Articles A and AnModal Verbs for SpeculationQuantifiers & Modal VerbsUsed to - Would - TensesInfinitive or GerundVerb to Be Tenses & Object PronounGrammar and ReadingSubordination ConjunctionsSimple Present Negative and QuestionPresent Simple QuestionsOther quiz:
Tenses › ViewWhen the ship … over the horizon, he … and … back home, crying.
A. disappeared, had stood up, was going
B. was disappearing, stood up, had gone
C. had disappeared, stood up, went
Grammar › View
The students ______ from their seats to say hello.
A. rise
B. raise
Grammar › ViewThe Thompson arrived ______ Thailand when went on their holiday.
A. in
B. at
C. about
D. to
Grammar › View
This isn’t my iphone. I’m sure it’s ___________.
A. Yours
B. Your
C. You’re
D. None of the above.