[ Grammar ]
I wonder how long _____?
A. will the talk last
B. does the talk last
C. the talk will last

Random Topics:
SubjunctivesVocabulary & GrammarModals of ProbabilityPrepositionPresent Perfect and Present Perfect ContinuousPresent Forms and Narrative TensesModals - Conditionals - Future TensesAdjective / Noun + to InfinitiveProgressive TensesUnreal ConditionalsOther quiz:
Tenses › ViewWhen I opened my eyes, I ………………. a strange sight.
A. saw
B. have seen
C. see
Auxiliary and Modal Verbs › View
Which modal auxiliary is more formal when asking for permission?
A. Can
B. Could
C. May
D. Might
Grammar › ViewWhich is a coordinating conjunction?
A. as
B. even
C. where
D. so
Passive Voice with Modals › View
These rules ___ by everyone in the company.
A. have to be followed
B. have to follow
C. have been followed
