Why didn’t you tell me about the meeting? —-I ______ tell you the day before yesterdayYou just forget it

Why not get your mother a scarf for her birthday —_______

It is not socially for parents to leave children unattended at that age.

Daming hasn’t done much exercise _______ he got his computer.

So difficult it to work out the problem that I decided to ask Tom for advice. [ ]