下列情况,属于正当防卫的是（ ）

　We are ___about your request.

　I have confirmed that the hijacker doesn’t have any ___ .

　I have confirmed that the___ doesn’t have any associates.

　I have___ that the hijacker doesn’t have any associates.

　The hijacker is___.

　The ___ is under control.

　He ___ flying to Taiwan, otherwise, he will explode the plane or kill the hostage.

　He requests flying to Taiwan, otherwise, he will explode the plane or kill the ___ .

　He requests flying to Taiwan, otherwise, he will___the plane or kill the hostage.

　They hijacked a flight attendant as___ .