[ 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:
Tenses › ViewThe teacher ___ the test papers last week.
A. has returned
B. returned
C. will have returned
D. is returning
Grammar › View
_______ friend was talking with them.
A. Their
B. There
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