[ Grammar ]
What (you, do) ………..when you ………….(hear) that noise?
A. were you doing/ heard
B. you were doing / heard
C. you did/ heard
D. you did / were hearing

Random Topics:
Relative ClauseTenses - AuxiliariesTime ExpressionsFuture PassivePhrases and TensesNouns & PronounsPreference & Future TenseAdjectives Ed and IngAsking & Giving AttentionPresent Perfect vs Past SimpleOther quiz:
Gerund, Participle, Infinitive, or Appositive › ViewThe team scoring the most points will win. Scoring is a . . .
A. Gerund
B. Participle
C. Infinitive
D. Appositive
Grammar › View
This cake is __________ than the one we had last week.
A. tasty
B. tastier
C. tastiest
D. more tasty
Preposition of Direction › ViewThe cat crawled ________ the sofa.
A. over
B. under
C. on
D. at
Grammar › View
Choose the correct verb from the choices.
The owner of the puppies (seems, seem) interested in finding them good homes.
A. seems
B. seem