At that time Roshni ..... a novel for two months.
Ahad been writing
Bhas been writing
Chave been writing
Dwas writing
Ahad been writing
Bhas been writing
Chave been writing
Dwas writing
Related Questions:
Spot the error:
When i saw him(A)/ he have been reading(B)/ a novel for three years(C)/No error(D)