You should make it a rule to leave things________you can find them again.
---Mum, have you seen my U-Disk?---____________ you bought last Sunday? I'm afraid I haven't seen ________.
Mary is so quiet a girl that she seldom speaks in public places unless _____ to.
news came to us as great surprise that Malaysia Airlines Flight MH370 crashed with 154 Chinese passengers on aboard.
the occasional visit, what else does Alan do for his kids?
—So you gave her your phone? — . She said she'd return it to me when she could afford her own.