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. is working

Random Topics:
Present and Past TensesModals, Infinitives and GerundsAdverb PhrasesConditional Sentence Type 3Countable & Noncountable NounsFuture TenseGerunds and InfinitivesSo / Neither / Either / TooContractions and ConjunctionsWish SentencesOther quiz:
Type of Sentences › View“Pepperoni pizza is my favorite food.” is an example of what kind of sentence?
A. Declarative
B. Imperative
C. Interrogative
D. Exclamatory
Indirect Speech › View
The director said, “Where did you go to school?”
A. The director if where I go to school.
B. The director said where I’d gone to school.
C. The director asked where I’d gone to school.
Vocabulary › ViewWhen studying for the vocab midterm, you’ll need to ___ all the words into one list.
A. Aggregate
B. Affable
C. Articulate
D. Bizarre
Grammar › View
Some models hardly go out and they avoid _________ to clubs and restaurants. (go)
A. go
B. going
C. to go
D. to going
