An army spokesman stressed that all the soldiers had been ordered____________clear warnings before
问题描述：
An army spokesman stressed that all the soldiers had been ordered____________clear warnings before
A.to issue
B.being issued
C.to have issued
D.to be issued
答
order sb to do sth
sb be ordered to do sth 这里用的就是这个被动
这里issue不是已经发生,而是将来的一种动作；所以不用不定式的完成时 to have done