It is to you that I am indebted for all this
It is true, I am grieved to say
It is true none the less
It is very amusing
It is very far from being a fiction
It is very good of you to do this for my pleasure
It is very ingenious
It is very splendid of you
It is wanton capriciousness
It is your privilege to think so
It's a difficult and delicate matter to discuss
It's a matter of immediate urgency
It's absolute folly
It's absurd--it's impossible
It's all nonsense
It's as logical as it can be under the circumstances
It's been a strange experience for you
It's deliciously honest
It's going to be rather troublesome
It's inconceivable that it should ever be necessary
It's mere pride of opinion
It's my chief form of recreation
It's not a matter of vast importance
It's past my comprehension
It's quite wonderful how logical and simple you make it
It's really very perplexing
It's so charming of you to say that
It's so kind of you to come
It's such a bore having to talk about it
It's the natural sequence
It's too melancholy
It's very wonderful
It makes it all quite interesting
It may sound strange to you
It must be a trifle dull at times
It must be fascinating
It must be very gratifying to you
It must have been rather embarrassing
It seems an age since we've last seen you
It seems entirely wonderful to me
It seems incredible
It seems like a distracting dream
It seems preposterous
It seems the height of absurdity
It seems to me that you have a perfect right to do so
It seems unspeakably funny to me
It seems very ridiculous
It shall be as you wish
It should not be objectionable
It sounds plausible