The message is very important，so it is supposed _________ as soon as possible． A．to be sent

The message is very important，so it is supposed _________ as soon as possible． A．to be sent

A.

此处be supposed to do sth．意为“被期望做某事；应该做某事”，不定式做宾语。表示“消息被传送”，应该用不定式的被动式。下列动词常跟不定式做宾语：want，wish，hope，expect，ask，demand，pretend，care，decide，happen，offer，refuse，fail，plan，prepare，order，cause，afford，beg，manage，agree，promise等。