University is ______ most worthwhile time of discovery and learning, and it is also ______very enjoyable and valuable experience for every one of us.
| A．a；a | B．a；/ | C．/；a | D．a；he |
. The celebration started at ten in the morning and____about two hours.
| A．lasted | B．kept | C．continued | D．finished |
. Yesterday I missed my feet on the stairs and had a bad fall. Luckily it was nothing serious ___.
| A．however | B．therefore | C．also | D．though |
. _____ at the news that I didn’t know what to say to comfort her.
| A．So sad she looked | B．So sad did she look |
| C．So sadly she looked | D．So sadly did she look |
. — He speaks French because he once lived in France.
—Really? How long _____ there?
| A．does he live | B．was he living | C．has he lived | D．did he live |
. — We had a good time in the park last Saterday. Pity you weren’t there.
— I really ____ come but I was looking after my mother in the hospital.
| A．must | B．ought to | C．need have | D．should have |