  We examine a Wong-Zakai type approximation of a family of stochastic
differential equations driven by a general cadlag semimartingale. For such an
approximation, compared with the pointwise convergence result by Kurtz, Pardoux
and Protter [12, Theorem 6.5], we establish stronger convergence results under
the Skorokhod M_1-topology, which, among other possible applications, implies
the convergence of the first passage time of the solution to the stochastic
differential equation.
