小题1:C
小题2:D
小题3:B
小题1:细节理解题，根据文中语句“The death list in a school bus accident that happened on Wednesday morning in the northwest province of Gansu has risen to 20 following the death of one child later Wednesday.
”理解可知。
小题2:细节理解题，根据文中语句“The police has blamed(谴责） overloading for the accident, saying that the bus -- a van with nine seats -- was carrying 64 people.
”理解可知。64-9=55
小题3:词义理解题，根据文中语句理解可知。