--- I’m afraid I can only make a small contribution this time.
--- __________. We really appreciate your assistance.

— Tom was late for work this afternoon.
— _____？As far as I know, he is fairly punctual.

------Do you want another piece of cake ?
------______.

—I am thinking of the test tomorrow. I am afraid I cannot pass this time.
—_________! I am sure you will make it.

--Jenny, I think I’ll just have some coffee for a change
--- ____．The coffee I bought yesterday is in the cupboard

--- Do you mind if I record your lecture?
--- ________. Go ahead.

It’s so nice to hear from her again.        , we last met more than thirty years ago.

--- Do you think you will be able to finish your writing by five o’clock today?
--- __________. I’ll be busy with experiments all day.

－I’m sorry I’m late. My bus got blocked in the traffic jam on Yu’ao Bridge. 
－         .