Написать слово в скобках в прошедшем или будущем медли. The first

Написать слово в скобках в прошедшем либо будущем медли. The first pairs (make) of tent canvas and (sell) to gold miners. Later, the canvas (replace) by strong cotton, which was similar to the material produced in France - serge de Nimes. Now, the material (call) denim and (dye) blue with indigo. In 1873, copper rivets (add) to the jeans. Classical Levis jeans (still make) by the company.