October 31st is _____ Halloween, it’s _______ interesting festival for children.
-Your mother _______ take a bus to work?-Yes. But now she usually goes to work on foot.
-When _______ your mother _______ you that blue dress, Mary?-Sorry, I really can't remember.
You can't watch TV _______ you finish your homework.
They were _______ busy _______ with each other to remember the time.
Miss Taylor never wastes money on anything too expensive, even though (尽管)she can _______ to. She has donated much of the money she saved to charities.