English CAE formal or informal?
What about trying
Informal
Why not try
Informal
Additionally
formal
Also
formal
Furthermore
formal
I am writing with reference to your letter
formal
I hope to hear from you at your earliest convenience
formal
I look forward to hearing from you without delay
formal
I suggest that
formal
I urge you to
formal
I would like to offer congratulations on
formal
In my opinion
formal
It is recommended that you
formal
Let me congratulate you on
formal
Moreover
formal
Personally, I have no doubt that..
formal
I hold the view that
formal / informal
As well as that
informal
Better still
informal
Do drop me a line if you have time
informal
Hope to hear from you soon
informal
If I were you
informal
It was freat to hear from you
informal
Keep in touch
informal
My own thoughts are
informal
Thanks fow writing to me
informal
Then again
informal
To my mind
informal
What's more
informal
You could
informal
well done!
informal
