We _____ what to do, so we just called the police and ______.
A. didn’t know / waited
B. weren’t knowing / waited
C. didn’t know / were waiting

Random Topics:
Adjectives with PrepositionPersonal PronounTenses and Verb FormsModal Verbs of Certainty and PossibilityAdverbs and Adverbial PhrasesPast Simple and ContinuousMix-TensesPast and Perfect TensesExclamationInfinitives and ING FormsOther quiz:
Grammar › ViewWhich of the following sentences would use the pronoun “their”?
A. A student who wants to pass should do all of _____ homework.
B. Neither of them has submitted _____ assignments.
C. Both of them decided to leave _____ phones at home.
D. Everybody who wants to go needs to buy _____ ticket.
Grammar › View
Harry’s ______ broken his new computer.
A. Still
B. Yet
C. Just
D. Already
Grammar › ViewThe receptionist ………… answered the phone told me that the director was out.
A. whose
B. whom
C. which
D. that
World Literature Vocabulary › View
The baby bear was born premature. Premature means…
A. Earlier than 5 am in the morning
B. Late
C. Earlier than expected
D. Earlier rather than later
