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 |
---I’m sorry that I didn’t work out this problem.
---It’s _____our ability. I didn’t work it out, too.
| A．over | B．beyond | C．more than | D．above |
John received an invitation to dinner, and with his work ______, he gladly accepted it.
| A．finished | B．finishing | C．having finished | D．was finished |
— Is it OK if I take this seat?
—Sorry,___________.
| A．here you are | B．take it | C．it is taken | D．never mind |
With so many problems____ , the newly-elected president had a hard time.
| A．settled | B．to settle | C．being settled | D．was settled |
_____ many times, but he still didn’t know what to do next.
| A．Having been told | B．Although he had been told |
| C．He had been told | D．Having told |