Is this type of doorknob can be used for longer life?is this sentence right?if not please correctthank you .Please give some example and detailed explaination .

this is a key of the door修改病句 this is the new type of plane__ parts are made of plasticsA thatB whatC whichD whose I think that silence is the best reaction to nonsense of this type.怎么翻译? This new type of TV set is very expensive.(改为感叹句) one of the reasons for this is that western-type Australian food如何解释 英翻译中 This type of recorders is popular with the customers because it is small in size. This is the key __the door.A of B with C to D in Which type of game is more enjoyable. Trigger finger is a type of tendinitis. what is the type of passport? What type of plant is that? 7．My father works in the factory _____ this type of truck is made.应填什么,为什么which 英语翻译this type of kite is easy to make with a diamond-shaped frame,no wings and brown-paper covering. Where is my k_____ to this door This is a k____ to the door. this door is closea.what should ldo? Is this type of doorknob can be used for longer life?is this sentence right?if not please correctthank you .Please give some example and detailed explaination . The price of this type of bicycle is ____ of all in the shop.A the most expensive B the highest C the smallest