Regular verbs: discovered - discovered, sailed - sailed,<span> appeared - appeared</span>, prepared - prepared, smoked - smoked, depended- depended (on).
irregular verbs: was interested (in) - been <span>interested (in), </span>fought - fought, sold - sold.
7) Sergey is interested in sports. He is a good <u>swimmer</u> and he plays football fairly well.
8) They were walking very <u>slowly</u> and I told them they could miss their train.
<span>do you have a computer</span>