paul （这是人名）tries to open the door but fails.同义句

he tries to open the door but fails其中的fail加s是受he三单加s,还是指这一件事 paul tried to use a knife to open the door.(改同义句） paul tried to use a knife to open the door的同义句 she----to open the door but failed a.try b.tries c.tried d.i he use a knife to open the door 同义句 Open the door,please.同义句 please open the door同义句 he tries to in class but often fails Don't open the door until the bus stops.改为同义句Open the door _ 同义句转换 Tom uses another key to open the door? The thief tried to open the locked door but _________. Paul tried to open the locked door and ( )(打开了) it