She was so ________ in her job that she didn’t hear anybody knocking at the door.
—Sorry, I’m late. —That’s OK. You’re here and that’s what_________.
My mind wasn’t on what he was saying so I’m afraid I ______ half of it.
It was not ______ he took off his dark glasses ______ I realized he was Liu Xiang.
Locked in his own study, Tony was annoyed for _____ the change earlier.
Hi, Susan, are you interested in buying some used books for school? You _____ really save some money that way.