Use of infinitive forms

My friend Alex is coming from the UK. I am sorry not __________ about it earlier.

He doesn't know English well enough _________ with you.

Can anybody __________ me how to use a computer?

Good-bye! I am so pleased _________ you. - The pleasure is mine.

She was horrified at herself. To have asked his name, to have been told his name and ____________ it!

They must have taught him a lesson. It ought to _________ long ago.

He suddenly awoke from his trance; there was a decision ___________ .

I was very upset and I didn't know whom __________ to for advice.

There was nothing ________ , but to wait for the next train which was due at six.

It is not hard __________ decisions when you know what your values are.

Don't interrupt him when he is working. He hates ___________.

To be the gainer you are _________ yourself; to be happy you are to forget yourself.