Keys are used by people （for/with/to opening) the door.

Keys are used by people （for/with/to opening) the door. keys are user by people （for/with/to doing) the door the key is used by people for opening the door 】 Keys ( ) opening the lock in the door. 2.16Satellites are used by people for sending and to receive the s___ are used by people for sending and receving message She had lost her keys,as a result,he had to open the door by He's opening the door _____ Tim .a.for b.to c.from d.before The key ____ for opening the door of the room. Stamps are used ————sending letters选择题A,by B,for C,with D,to Where are the keys?They are ____the door. monument to the people's heroes为什么不是for of 还有这个the keys to t