—Have you       that Amy’s a little quiet these days?—Yes, I wonder what has happened to her．

Pandas are very _____ and ______. So we all like them.

 – I am afraid I can’t get there before 9 o’clock.– That’s OK. There’s no__________.

 — It’s convenient to travel from Ezhou to Wuhan by taking the newly-built green railway.— Yes. It’s said that ________________ is enough.

At that time, the calculator was a great ______ / ɪnˈvenʃn /.