[ Grammar ]
The fireman jumped out of the window when he saw the gas tank _____.
A. explode
B. exploded
C. exploding
D. had been exploded

Random Topics:
Modal Auxiliaries and Similar ExpressionsPrepositions of TimeGerund NounPresent Simple or Present ContinuousLinking Verbs & Helping VerbsFood VocabularyArticles and PronounsAction, Helping & Linking VerbsVerbal and Appositive PhrasesPresent Simple TenseOther quiz:
Vocabulary › ViewPATIENCE: He has no patience.
A. Will not wait happily
B. Has no free time
C. Has no faith
D. Does not know what is fair
Tenses › View
Look out! the waiter is _____________ a pot of boiling soup in your direction.
A. carries
B. carry
C. carried
D. carrying
Conjunctions › ViewRahman wanted to do well in his coming examination……….. he studied really hard .
A. so
B. but
C. or
D. and
Adjective & Adverbs › View
The disease Anorexia Nervosa is encountered in the West and is ——— common among women in certain professions, such as models and ballet dancers.
A. enough
B. such
C. as
D. more
E. a lot of
