Let’s review.
Is sb. naughty/lazy/nice/good/bad/shy/clever/quiet?
Yes, she/he is.
No, she/he isn’t.
Is Sam naughty?
Is Daming shy?
Is Lingling shy?
Is Amy quiet?
Is Ms Smart good?
Yes, he/she is.
No,he/she isn’t.
... ... ...
His work is good.
He works hard.
他的功课很优秀。他学习很努力。
How about Lingling?
玲玲的功课怎么样呢?
be=am is are
I am good at English.
She/He is good at English.
You/We are good at English.
Be good at 擅长
Be very good at 很擅长
Be quite good at
... ... ...