He worked        , but he felt       .

There’s smile on the teacher’s face. I think she’s ______ our work.

I find this Math problem very ______. I believe students can work it out ______.

—Have you finished your homework yet?— No, I’ll finish it in ________ ten minutes.

---Jay’s songs sound ________. Don’t miss his ________ show.---Yes. He is my favorite singer.