[ Passive Voice ]
The problem_________________ (solve) quickly once the manager arrived.
A. The problem is solved quickly once the manager arrived.
B. The problem was solved quickly once the manager arrived.
C. The problem has been solved quickly once the manager arrived.

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Modals and Active and Passive VoicePresent Simple PassiveOrdering AdjectivesPresent Perfect vs Past Simple TensePresent Simple, Present Continuous or Present PerfectArticles and DeterminersVerb + Infinitive or GerundSentence TypesPresent Perfect or Past SimpleGrammar Present Perfect (ever never)Other quiz:
Tenses › ViewWhile Lan _______ as a volunteer in the countryside, she met an old friend.
A. was working
B. had worked
C. work
D. worked
Narrative Tenses › View
Peter is very lazy. He always copies his friends’ homework and never does it by _______________.
A. him
B. themselves
C. yourselves
D. himself
Grammar › ViewThere _________ any cinemas in my village.
A. Is
B. Isn’t
C. Are
D. Aren’t
Homonyms › View
A row boat needs more than one ___.
a. oar
b. ore