[ Past Tenses ]
Tom (see) a serious accident while he (stand) at the bus stop.
A. saw-was standing
B. saw-were standing
C. sees-was standing
D. see-was standing

Random Topics:
Grammar, Conditional Sentences, VocabularyEnglish MorphosyntaxTime ClauseMixed ConditionalConditional SentenceFuture Tense - will and going toPresent Simple TenseRelative & ModalsVerb-ing and InfinitiveModals of Obligation and PermissionOther quiz:
Grammar › ViewThe last time my sister went to the university ______ last month.
A. was
B. were
C. is
D. am
Tenses › View
By the time the technician ____________ (arrive), we had already been trapped in the lift for nearly two hours.
A. arrived
B. has arrived
C. had arrived
D. arrives
Grammar and Vocabulary › ViewBach made significant _______ in classical music
A. innovations
B. creativity
C. strangeness
D. innovations
Vocabulary & Grammar › View
This chair is light and easy to carry around because it is made of ____________ rather than wood.
A. plastic
B. crowd
C. product
D. harm
