[ Active and Passive Voice ]
Computers ________ since 1940s.
A. is in used
B. was used to
C. used
D. have been in use

Random Topics:
Grammar - Capitalization and Possessive NounsVerb to beConditionals and WishesAdverb Of PlaceVerb Forms and PrepositionsRelative Pronoun/AdverbsSynonymsSimple TenseArticles and DemonstrativesCoherent Sentence with Correct Grammar StructureOther quiz:
Precede vs. Proceed › ViewArina … with her reading.
(a) preceded
(b) proceeded
Grammar: Morphology › View
Refers to when there is more than one of something, usually indicated by the addition of an inflectional morpheme e.g. on regular nouns -s or -es is used to show _________.
A. irregular
B. regular
C. plurality
D. morpheme
Modal Verbs › ViewYou ______ turn right when the light is red.
A. don’t have to
B. must
C. mustn’t
D. have to
Present Perfect Tense › View
How long _______ (you/know) ______ each other?
A. did … know
B. have … known
C. do … know
