求助 反义疑问句

Question

Mary be scared of her math teacher

Answer 1

Mary is scared of her math teacher, isn't she?

Mary was scared of her math teacher, wasn't she?

Answer 2

Answer 3

isn't she
wasn't she

Answer 4

Mary be scared of her math teacher,isn't she?

Answer 5

she
could't
have
done
better,_____she？这里could't
have
done
better带有虚拟语气。应当填could
而
she
couldn't
have
done
it,did
she?是对过去的猜测。应回到原来的时态，即she
didn't
do
it。所以用的是did
she。译为她不可能做过这件事，是吗？。
总之，对于猜测语气的反义疑问句都应先将他改为原来的时态。再反问。
呃、语言表达能力不咋样。==#不懂的话可以hi我。