When I was a little boy, l often dreamed a spaceman .
.----Is she older than you? -----Yes, she is older than I ___ three years.
Lincoln died ____ the morning ___ April 15, 1865.
I haven't seen her ____ the past few years.
What have you done ____ my picture-book?
.---Do you like working as a waiter? -----Yes, but I get tired ___ the whole day.