She ---her backpack here and there ,but she didn't find it

问题描述:

She ---her backpack here and there ,but she didn't find it
A.found
B.looked for
C,saw
D.looks for

B
A是到到的意思.B是寻找的意思.C是看见的意思.D是现在时.这个句是过去时.
选B