.Hearing that a 7.1-magnitude earthquake hit the Yushu county, Qinghai province on April 15,the students’ union us to donate money for the quake-hit area.
A. called up
B. called for
C. called in
D. called on
网友回答
A. called up
B. called for
C. called in
(答案→)D. called on
解析：可联系答.案.网客服索取。