[ Tenses ]
When we (open) the door, he (work) on a computer.
A. opened – was working
B. have opened – was working
C. opened – worked
D. opened – have worked

Random Topics:
Conditional TypesNarrative TensesGrammar, adverbs of frequency placementPast Tense vs Future TenseLinkers and ConjunctionsPresent Perfect Simple and ContinuousNoun PhraseTypes of Sentence StructureVerbs + Gerund or InfinitivePresent Tense vs Past TenseOther quiz:
Modal Verbs › ViewIf you want to help your friend, you ……….. to do her homework. Instead, you should show her how to do it by herself.
A. ought not
B. have to
C. must
D. shouldn’t
Grammar › View
He asked me ___________________. (reported request)
A. to help him in his project.
B. for giving some help
C. if I helped in his project