  We have performed molecular dynamics simulations for a model two-dimensional
soft-core mixture in a supercooled state. The mixture exhibits a slow
structural relaxation in a quiescent state, however, the relaxation is much
enhanced in sheared states. There observed surprisingly small anisotropy both
in the coherent and incoherent density correlation functions even under
extremely strong shear which is $10^3$ times faster than the structural
relaxation rate. The present simulation results agree well with predictions of
the recently developed mode-coupling theory in shear.
