[ Passive Voice ]
Since the 1970s, computers ________ at a low enough cost to allow individuals to own a personal computer.
A. will be produced
B. have been produced
C. are produced
D. were produced
Random Topics:
Personal PronounsPast Simple VerbsModals and PhrasesPresent Perfect ContinuousSimilesGerunds and InfinitivesPhrase or ClauseNumbersGrammar - Present PerfectPresent Perfect and Simple Past TenseOther quiz:
Mixed General Quiz › ViewThe ___ is found naturally in the shell of an oyster.
a. pearl
b. purl
Grammar › View
Today many species of plants and animals are in ________ of extinction
A. danger
B. endangered
C. endanger
D. dangerous
Perfect Tenses › ViewThe aeroplane ______________ ! Roslan is late again.
A. has take off
B. had took off
C. has taken off
D. have taken off
Grammar › View
Choose the synonyms of the adjective given.
big
A. wide
B. clever
C. enormous
D. kind