[ Passive Voice in Past Simple Tense ]
A lot of lives have been saved since seat belts _______________ (introduce) many years ago.
A. introduced
B. was introduced
C. were introduced
D. were introducing
Random Topics:
Types of Simple SentencesPunctuationMiscellaneous Grammar UsagesComparativesModal Verb Gerund or To InfinitiveTensePhrase and ClauseFirst Conditional SentenceVerb to Be Tenses & Object PronounGerunds in SentencesOther quiz:
Modal Verbs › ViewWhen Tom was a child, he __________ very fast.
A. can run
B. could runs
C. cans run
D. could run
Tenses › View
. She _______ attending the conference next week because of a personal commitment.
A. isn’t
B. doesn’t
C. wasn’t
D. don’t
Modal Verbs › ViewComplete the sentence: You _______ finish your homework before going out to play.
A. must
B. might
C. should
D. can
Grammar › View
According to the law, dogs ____ not ____enter the building.
A. ought to
B. should