_________________ long before they invited you to come in?
A. were you waiting
B. have you been waiting
C. had you waited
D. had you been waiting
E. have you waited

Random Topics:
Tenses & PassiveMixed ConditionalsCan, Could, May, MightGrammar: Defining Relative ClausesIrregular AdjectivesTravel VocabularyAction VerbInfinitive and GerundAdverbs of How Something is DoneThe Past SimpleOther quiz:
Tenses › ViewNext year, I … in Bandung
A. Will have stay
B. Will have stayed
C. Will stayed
D. Stayed
Grammar › View
We decided to climb the tall tree.
A. declarative
B. interrogative
C. exclamatory
D. imperative
What does the present perfect tense imply when no specific time is mentioned?
A. An action that happened at an unspecified time in the past
B. An action that will happen in the future
C. A repeated action in the past
D. An action happening right now
Grammar › View
Quan ho Bac Ninh and don ca tai tu are two forms of _______, which are on the UNESCO World Heritage list.
A. musical instrument
B. landscape complex
C. folk singing
D. crowdfunding
