mber of students in our school ________about 30,000 and________them study hard.

He can hardly stay awake because he is so tired. ______

This is the first time for me to hold the ________ birthday party for an old man.—I am not busy. Let me help you.

The book tells stories of the earthquake through the eyes of those ________ lives were affected.

填入下面横线上的句子，与上句衔接最恰当的一组是（ ）公安干警及时赶赴现场侦察，中午12时，