They ............... each other for a long time now.
Ahave known
Bhas known
Chave been known
Dhas been known
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Related Questions:
Binuraj ..... the fee.
Use the correct tense form of the verb given in the brackets. Today we (go) to my Uncle's house.
Has he ___________ the flowers?
When I ..... home my brother was playing chess.
Spot the error:
When i saw him(A)/ he have been reading(B)/ a novel for three years(C)/No error(D)