They ___ (know) each other for ten years! A. have ...

[ Present Perfect Simple and Continuous ]

They ___ (know) each other for ten years!

A. have been knowing

B. have been knowed

C. have knowed

D. have known

Select your answer:
A B C D E

Other quiz:

Grammar › View

Sam and David are studying in the library, …?

A. isn’t he

B. aren’t they

C. doesn’t he

Grammar › View

______, I have to put it away and focus my attention on study this week.

A. However the book is amusing

B. No matter amusing the book is

C. However amusing the book is

D. No matter how the book is amusing