Final answer:
Percale is the lightweight fabric woven in the Oxford variation of the plain weave, with pairs of warp threads grouped together, and can be used as a base cloth for decorative prints.
Step-by-step explanation:
The lightweight fabric that is woven in the Oxford variation of the plain weave, with pairs of warp threads grouped together, and can be used as a base cloth for decorative prints is Percale. Percale is a type of plain weave fabric that is known for its smooth and crisp texture. It is often used for bed sheets, but can also be used for clothing and home decor items.