题目内容：

1 The box is too heavy for me to carry
加上 2 The boy went to sleep after the class began
3 Don't make jokes about the people in trouble

优质解答

1 THE BOX IS SO HEAVY THAT I CAN'T VARRY IT.
2 THE BOY FELL ASLEEP WHEN THE CLASS BEGAN.
3 DON'T LAUGH AT PEOPLE WHO ARE IN TROUBLE.