[ Perfect Tense ]
He started to work in the office at 8 o’clock. It’s now 12 o’clock and he just stopped it. It means that he …. for four hours.
A. has worked
B. worked
C. has been working
D. will have worked

Random Topics:
Personal Pronouns and VerbDefinite and Indefinite ArticleGrammar & VocabWh-QuestionPassive ModalsPlaces in TownConditional Sentence Type 2InfinitivesPassive VoiceCoordinate ConjunctionOther quiz:
Grammar › ViewWhere did you go last summer?
A. I go to the zoo
B. I went to the zoo
Grammar › View
In Spain, meal / meals are very different – / from meals in England.
A. meal – (-)
B. meals – (-)
C. meal – from
D. meals – from
Grammar › ViewThe weather is _____ nice today.
A. enough
B. too
C. very
Adverbial Clause › View
I won’t go out _____ it stops raining.
A. as long as
B. unless
C. when
D. if
