I was about to give up the project _________ it hit me _________ I could work with my roommates. That's to say, I can turn to them for help.
. — _______ . — Drop in if you have time. —Sure. Bye!
.He’s unlucky, and he’s always suffering _____ luck one after another.
.A computer is so useful a machine ________ we can use everywhere.
He ________ the window of our classroom yesterday because he didn’t come to school.
Mary had promised to give me a ticket for tomorrow.She failed, ____.