Workers aged 25－34 usually have more employment experience than workers aged 16－2A．YB．NC．N

American students usually get their high school diploma at the age of______.A．12B．17C．20D．

This is an age of cooperation, and todays leader is usually one sitting at a table with an

As to the ratio of college－educated adults aged 25 to 34, the US held the______place.A．ten

People are usually diagnosed with it between the ages of 30 and 55.

Part－time workers usually get _____ by the hour. A. pay B. paying C. paid

American children usually begin their school at the age ofA．7.B．6.C．5.D．4.