完成句子
根据所给提示，完成句子，每空一词，含缩略词。There were some people in the park last week. (改否定句)
There ________ ________ people in the park last week.He put the camera in the drawer this morning. (划线部分提问)
_________ _________ he put the camera this morning.The old man died five years ago. (改为同义句)
The old man has been _________ _________ five years ago.我们必须阻止人们砍伐太多的树木。(完成译句)
We must ________ people from __________ down too many trees.
China has been able to make big planes like C919 with scientists great efforts．（变为一般疑问句）
China able to make big planes like C919 with scientists' great efforts？
They will study abroad after they finish high school． （改为同义句）
They won't study abroad they high school．
The newly﹣opened supermarket had something on sale last Sunday． （改为一般疑问句）
the newly﹣opened supermarket anything on sale last Sunday？
Whose schoolbag is on the desk？Father asked．（合并为含有宾语从句的复合句）
Father asked schoolbag on the desk．
Mr．Black decided to send his son to China．（改为同义句）
Mr．Black the to send his son to China．