Warmblooded animals live an active life even in freezing winter，which helps them to________their normal body temperature.[ ]

_____ time, he’ll make a first-class tennis player[ ]

The terrorists might have planted a bomb on a plane in Athens,set to________when it arrived in NewYork.

Jim, I will go to Hong Kong tomorrow.–_______

t both of his parents in the bigearthquake, but for him, a kindcouple adopted him and took good care of him