It ____ Mike and Mary who helped the old man several days ago.
a fire, hotel guests are asked to remain calm.
As is known to us, theory is based on practice and servers practice.A. by chance B. in turn C. in return C. by turn
In the 2004 Shanghai Industrial Fair, electronic equipment, good in both qulity and style, will be shown.
everyone can hear the speaker there is no of turning up the radio.
She is not worth .