(一)
One day a few years ago we had a guest of the uninvited variety. In fact, it was a bird，__1__， a sparrow.
“What’s that？” I asked when I first heard the gentle thumping(重击声). “It sounds like Joe is outside playing basketball，” my wife, Anita, said. She __2__ and listened more devotedly. “It’s coming from the __3__. ” she said. “Maybe it’s one of the little kids. ”
We rushed out of the door. Jonathan, our youngest, was __4__ to make trouble. “If he’s making holes in the wall again…” I said as I searched there.
