Question

he failed his maths examination

请说明问题答案的原因和不定式否定句的含义、
1.My little sister is too youn g to go to school.（改为同义句）
2.My classmate failed in his maths exam.（改为同义句）
3.He asks me to put on my hat.（改为同义句）
4.He asks me to put on my hat（改为不定式否定句）

Answer 1

1,My little sister is not old enough to go to school.
too…to… 太…以至于… …enough to… …足够…做… 两者经常互用
2,My classmate did not succeed in his maths exam.
fail 的反义词是 succeed
3,He tells me to put on my hat.
ask 和 tell 在一定程度上可以换用
4,He asks me not to put on my hat.
不定式的否定形式就是在 to 前加 not