[ Tenses ]
Past Perfect Continuous Tense
How long _______ before they finally finished the project?
A. did they work on it
B. had they been working on it
C. have they been working on it
D. were they working on it
Select your answer:
Random Topics:
To infinitive - GerundTenses and Passive VoicePreposition and Word Formtoo / enoughGrammar & ReadingQuantifies and Modals of DeductionComparison Degree & GerundsPreposition of DirectionSimple and Past TensesPerfect ModalsOther quiz:
Tenses › ViewHe (give) a party today because it is his birthday.
A. is giving
B. will give
C. will be given
D. are giving
Grammar › View
My sister doesn´t like to _____online.
A. shop
B. shopping
C. going shopping