—Are you going to Tom’s birthday party?—_________.I might have to work.
_____ you pass me the plate on the table?
The doctor came up and asked me _____the day before.
Livemocha.com is a free site ______visitors can not just learn various languages but also chat online.
Frank, with his two sisters, _____London by train which _____at 8:30 next morning.
It is this kind of exciting trip _____most of my classmates only dream about.