The population of China ________ over 12 million and eighty percent of the population ______ peasants.[ ]

On AIDS Day, the minister of Health Departmentdemanded that the problems ______ paid special attention to.

下列语句分别编为四组，全部有通假字的一组是（ ）①早缫而绪，早织而缕 ②鼓瑟希，铿尔，舍瑟而作③莫春者，春服既成 ④千乘之国，摄乎大国之间⑤从余问古事，或凭几学书 ⑥家有老妪，尝居于此

___ you need, ____you’ll feel in J. K. Rowing’s book.

A smile costs nothing, but givesso ______.