D.
must (表示肯定的推测)一定是,谅必,八成
This must be your room.
这一定是你的房间了.
Where is my pen?" 我的钢笔在哪?
"I must have lost it." 我一定是弄丢了
"Where is my pen?"
D.
must (表示肯定的推测)一定是,谅必,八成
This must be your room.
这一定是你的房间了.
Where is my pen?" 我的钢笔在哪?
"I must have lost it." 我一定是弄丢了