{{B}}quEstions 26 to 28 ArE BAsED on thE pAssAgE you hAvE just hEArD、{{/B}}

A．thEy pErFormED mAinly inEuropE.
B．thEy imitAtED thE tEChniquEs oF BAllEt.
C．thEy pErFormED to ClAssiCAl musiC、
D．thEir works hAD no FormAl struCturE.