THERE ARE some ____in the river (FISH)填fish 还是 fishes 好像都可以 填fishes 就是有很多种鱼在河里?

THERE ARE some ____in the river (FISH)填fish 还是 fishes 好像都可以 填fishes 就是有很多种鱼在河里?
THERE ARE some ____in the river (FISH)
填fish 还是 fishes 好像都可以 填fishes 就是有很多种鱼在河里?

THERE ARE some ____in the river (FISH)填fish 还是 fishes 好像都可以 填fishes 就是有很多种鱼在河里?
fishes

fish
fish用作可数名词时单数和复数形式相同（two fish两条鱼），指“鱼的种类”时复数形式才为fishes（two fishes两种鱼）。