自考365为考生们精心整理了学位英语/成人英语三级“每日一练”习题（2017年4月22日），欢迎积极参与学习！更多精彩信息，请关注本站。

In order to gain a bigger share in the international market, many state-run companier are striving _____ their products more competitive.

A）to make  B）making  C）to have made  D）having made