Osee:As titled, ..., further, all this background or all these background? Thanks a lot.
RayH:Strictly speaking "data" is plural so "these data", however you will very commonly see and hear "data" treated as singular so "this data". I think the distinction is pretty much blurred to point where it doesn't exist in current usage.
all this background or all these background?
this, this, this.
I'm not clear about why you find this confusing.
Best wishes, Clive
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