亲,Complete the following sentences,using let alone

亲,Complete the following sentences,using let alone
Many middle-aged people find it extremely hard to find time to sit down,_____
she has no chairs in her room,_____
He can hardly support his family on his present incom,_____
Given the unsatisfying working conditions,we can't finish the project on time
We are not planning to establish our companies across Europe
下两道题using needless to say
_______will definitely
____will definitely attract more consumers to our shop
I am sure she will be happy to know that______
麻烦翻译一下这些句子。