She is Japanese, but she can speak ________ Chinese.

—Do you think yesterday’s math problem was difficult? —Yes. I could ________ work it out. 

I’m not good at English, my friend isn’t, ____.

----Mum, what are you cooking? It smells so _______. ----Oh, cheese cake, of course！I know you enjoy _______ it. 

—Have they finished the work? —Not         .