The Professor shook his head and looked at the coach. "It's im-
possible!” he said. "I don't want to punish your team. I understand
he can throw a ball very well but, alas,” he doesn't know mathema-
tics at all. He can't be a student."
But the coach seriously asked: "Oh, please, sir! Let him become
a student. He was only wrong by two."
Переведите в уосвенную речь.
Of course they looks ugly, but they make useful things such as collecting rubbish. But also this insects have disadvantages too and this disadvantages are really very serious! The mail problem of them it's their ability to spread infections.
In conclusion i want to add that we need to overcome problems which connected with insects, but we mustn't kill them, because insects also make a lot of usefull things for us.