Question:

They ............... each other for a long time now.

Ahave known

Bhas known

Chave been known

Dhas been known

Answer:

A. have known


Related Questions:

Use the correct tense form of the verb given in the brackets. She (do) her homework regularly.

Identify the tense."The lights went out when we were having dinner".

Prasanna ................. reached Bangalore by this time.

Spot the error:

When I(A)/ gone out(B)/,the sun was shining(C)/No error.(D) 

I           the letter , but I can't find a stamp.