How long ______________ studying food processing techniques for the company when he retired?
A. did Martin work
B. had Martin worked
C. had Martin been working

Random Topics:
Wh- Questions Present Simple TensePassive Voice with ModalsBecause of & Inspite ofAdjective or AdverbQuestion Tags in Verb TensesLinking Verbs and TensesPresent Perfect and Past TensesTransitional WordsPast Tense and NeutralAdjective & AdverbsOther quiz:
Vocabulary › ViewWhat is the definition of ‘destination’?
A. To improve or become better
B. To make something worse
C. To have a particular position in a list of things that have been put in order of importance
D. the place that someone is going to
Grammar › View
Nowadays, companies ________________ by a group of technicians and not only by specialised engineers.
A. are assisted
B. have assisted
C. assist
Subject-Verb Agreement › ViewMy shears … sharp enough.
- aren’t
- isn’t
Present and Past Tenses › View
During the meeting, the CEO ________ (interrupt) and ________ (announce) the company’s restructuring plan.
A. interrupted / announced
B. interrupted / was announcing
C. was interrupting / announced
D. was interrupting / was announcing
