句型转换（5%，每线0.5）
“When will he have a concert?” the boy asked.（改为间接引语）
The boy asked       he         have a concert
These tigers are facing great danger.（改为感叹句）
_________  ________ danger these tigers are facing!
Was he killed? Did he kill himself? I wonder. (合并为一句)
I wonder _________ he was killed _________ he killed himself.
We shall make an extra model.（改为同义句）
We shall make __________  ___________ model.
To prevent us from floating in the air, we must wear special boots.(提问)
_________  _________ we wear special boots?