[ Tenses ]
A: Whose is this necklace?
B: I don’t know. I ___ it while I ___ the carpet.
A. found-was cleaning
B. have found-was cleaning
C. had found-cleaned
D. found-had cleaned

Random Topics:
PunctuationsUnderstanding Product Packaging and TensesGive, do and makeSentence Transformationmust/shouldCountable and UncountableSimple and Compound SentencesComparatives, Superlatives & EquativesPrepositions & Modal VerbsGrammar - help/have/let/makeOther quiz:
Grammar - Connectors › ViewWhat does the connector “In conclusion” do?
A. emphasis
B. show contrast
C. show comparison
D. give a summary
E. illustrate/explain
Present Tenses › View
Construct present perfect continuous: She (to work) here since 2019.
A. She was working here since 2019.
B. She has worked here since 2019.
C. She has been working here since 2019.
D. She is working here since 2019.
Grammar › Viewafter miss lilian _______her work,she went home straight way
A. finished
B. had finished
C. has finished
D. have finished
Tenses › View
Last week, they ________ happily at the sea with their family.
A. swim
B. swam
C. swims
D. swimming
