Where have you _________ all day —I came back at noon and I _________ inthis room ever since.

I saw him in the library yesterday. He ________ a book at that moment.

Tu Youyou’s years’ of hard work ________ when she finally won the Nobel Prize.

en! It’s raining. — Oh, really I ________ it at all.

Jacky Cheung is going to give a concert in Huizhou. It ________ next week.