[ Past Perfect Tense ]
Where _____ the security guard gone?
A. did
B. had
C. have
D. is

Random Topics:
Simple, Complex, Compound SentenceNouns, Articles, DeterminersHas Got & Have GotRelative PronounsRegular and Irregular VerbsPrepositions of Time & PlaceAdverbial Clause / If / ComparativesModals in the Past - Speculation and DeductionConjunctions & PrepositionsConnectorsOther quiz:
Modals for Obligation › ViewYou _____________________ pay attention in class.
A. must
B. mustn’t
Object Pronouns › View
They are my friends. I like playing basketball with ___.
A. us
B. them
C. their
D. they
Countable and Uncountable Nouns › Viewtraffic
A. countable
B. uncountable
Preposition › View
Could you put this pen _______ the table?
A. on
B. under
C. behind
D. in front of
