1.S_____ there was a knock on the door.结合句意根据首字母填空

1.S_____ there was a knock on the door.结合句意根据首字母填空
1.S_____ there was a knock on the door.
结合句意根据首字母填空

1.S_____ there was a knock on the door.结合句意根据首字母填空
这个可以填很多词,但是都不是根据语法填的,是根据意思填的.
Sorry,Stop,Silent 都行