____ computers are of great benefit to the development of science and technology.

You’dbetter______somemoneyforspecialuse.

On my way home, I saw a granny fall down. I offered help first and then _____ the police.

I remember you lent me a book last week .— I forgot .

I’m sorry. I shouldn’t have been so rude to you. —You ________ something not very nice to me, but that’s OK.