Fill in the blanks with correct usages. I am sorry ________.
Afor keeping you waiting.
Bto keep you waiting
Cfor keep you waiting
Dfor keeping to wait.
Afor keeping you waiting.
Bto keep you waiting
Cfor keep you waiting
Dfor keeping to wait.
Related Questions:
Spot the error:
He would not(A)/ have been playing(B)/ cricket for two hours(C)/No error(D).