Look ! there is a boy ____ by the lake. A.is fishing B.fish c. fishes D.fishing
问题描述：
Look ! there is a boy ____ by the lake. A.is fishing B.fish c. fishes D.fishing
答
D
答
看!有一个男孩____附近的的湖。a。is捕鱼b。fishc源文件。鱼d。fishing
答
D fishing 句式是 there is sb doing sth