[ 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 › ViewThe more effort you put in, ____________.
A. you will get more satisfying results
B. the more satisfying your results will be
C. and you are more likely to get satisfying results
D. and the results will be more satisfying than you can ever imagine
Grammar › View
not only you but also she …….
A. are crazy
B. is crazy
C. were crazy
D. crazy
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
