[ Tenses ]
They __________ this research for years.
A. have done
B. have been doing
C. were doing
Select your answer:
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Grammar › ViewThere are two bedrooms in ________flat.
A. Hoa
B. Hoa’
C. Hoa’s
D. Hoas’
Grammar › View
Where ________ ?
A. you go
B. do you go
C. are you going