问题
选择题
The message is very important, so it is supposed _______as soon as possible.
A．to be sent
B．to send
C．being sent
D．sending
答案
答案：A
考察固定结构和语态。Be supposed to do sth应该做某事；根据句意可知使用被动语态。句意：那个消息非常重要，所以它应该尽快被发送。