--- This math problem is _____ hard for me to understand. Can you help me ?----Sure. It’s my pleasure.
I was nearly late for work yesterday morning, but I only ________ my class.
I think I have ________ my homework at home.
_________ September 21, 2011, I arrived at my school at around 7:50 a.m.
By the time I got up, my mother _______ .
Life is full ______ unexpected.