1.Are you good at speaking?I asked her.
I asked her whether/if she was good at speaking.
2.Can you swim?He asked me.
He asked me whether/if I could swim.
这两句都是疑问句,本身是问别人是否如何的.例：Are you good at speaking?,因此要加上一个连词whether或是if表达“是否”,然后把把疑问句改成陈述句语序.I am good at speaking.根据主句改成相应时态,I was good at speaking.最后因为主语问的是her,所以从句的主语应改为she.因此改为：I asked her whether/if she was good at speaking.
`(*∩_∩*)′!