Was_______ John’squick action and knowledge of first aid ________ saved her life

(2013·江西南昌一模)Why ________ it get colder when we climb up a mountain? We are getting nearer to the sun!

Has the little boy who saved the drowning girl left the school — Not yet. He _______in Room203 of the teaching building right now.

The first edition of the magazine was published in 1960, and has been a best-seller _______ [ ]

In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets.