Got 2 and 3 but only because I looked them up!
Let’s have a U please
Hi
Inventors?
Got two of them, the middle two,
Connection please…
A——ERT/—/—AR—HOU—E
—ERCY/—HAW
DIETRICH/WI——E—
RO—ERT/W/THO——O—
Used…A D E I R H T C Y W O U
We may as well have an S as it’s something house…
Got it!
They were all inventors…
Albert J Parkhouse (coat hanger)
Percy Shaw (cats eyes)
Dietrich Winkel (metronome)
Robert W Thomson (pneumatic tyre)
Spot on Ruthio. They were indeed inventors/Discoverers of objects that are in common use.
Well done. 
Song…and I’d like the next line too please!
_ _ _ / _ _ _ _ / _ _ _ _ / _ _ _ _ _ _ _ _ / _ _ _ _ / _ _ / _ _ _ _ / _ _
I’d love a T please
Kettle’s on Tezza!
Song…and I’d like the next line too please!
_ _ _ / _ _ _ _ / _ _ _ _ / _ _ _ T _ _ _ _ / _ _ _ _ / _ _ / _ _ _ _ / _ _
Letters used: T
Milk no sugar :-). I’m going to be greedy now and ask for an A
Just a quick question Ruth. Are we looking for a song title or the first line of a song ? (Bit simple me sometimes) 
Hi
An A please.
An E please.
Song…and I’d like the next line too please!
_ _ E / _ E _ A / _ E _ A / _ _ A T E _ E _ / _ _ _ _ / _ E / _ _ _ _ / _ E
Letters used: T A E
Tezza the title and the first line is all the same here.
Easy peasy!
Que sera sera whatever will be will be
The futures not ours to see, que sera sera.
That’s the one!
Off to bed now, night night xx
Connection please.
———————
———————
—————
—————
Used…
Hope this is easy
S please
Mine was easy peasy summer!!
An A please Tezza
Connection please.
———A———
———————
S—A—S
—A—A—
Used… A S