Topics: Tenses Usage
The scientist _____ solutions to clean polluted rivers when she discovered a breakthrough.
A. researched
B. was researching
C. had researched
D. is researching
Select your answer:
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Present Simple PassivePhrasal Verb With TakeVerb Tenses and Subject Verb AgreementIdentifying Sentence TypesPast Perfect SimpleSimple TenseVerb and PrepositionPhrasal Verb & Prepositional PhraseReported Speech and SubjunctiveConditional ClauseOther quiz:
Grammar › ViewShe is the artist_________ paintings were displayed in the gallery.
A. whose
B. who’s
C. that
D. which
Grammar › View
A: _________ is hungry now?
B: Sabrina is hungry now.
A. Who
B. When
C. How
D. Why