Question

An army spokesman stressed that all the soldiers had been ordered ________ clear warnings before firing any shots．

1. A.
   to issue
2. B.
   being issued
3. C.
   to have issued
4. D.
   to be issued

Answer 1

A
解析：
本題考查不定式作主語補(bǔ)足語的用法及非謂語動詞的時態(tài)和語態(tài)。order sb．to do sth．命令某人做某事句中的order是以被動形式出現(xiàn)的，故其后應(yīng)接不定式作主語補(bǔ)足語。又因issue（發(fā)布）的賓語是clear warnings，且該動作尚未發(fā)生，故選不定式的一般式作主補(bǔ)。