[ Vocabulary and grammar ]
Nylon ______________ in the 1930s
A. invented
B. was invented
C. is invented
D. has been invented
Select your answer:
Random Topics:
Verb AbilityPrepositions and Preposition PhrasesModals, Conditionals, and Clauses- Defining, Non-definingGive, do and makePassive VoiceGerund or to InfinitiveClausesGrammar Like & Linking VerbGrammar : Must (Necessity)Adjective ClauseOther quiz:
Past Tenses › ViewTim _____ on a bench in the park.
A. sitting
B. sut
C. sits
D. satted
Grammar › View
“Please discuss among __________ before presenting it to the class,” the teacher told the group members.
A. yourself
B. yourselves
C. ourselves
D. themselves