The situation in the Middle East is so ______ that we have to be ______ when dealing with the hostage issue.
| A．complex; cautious | B．difficult; anxious | C．mixed; careful | D．mild; eager |
Why is he not allowed to stay here? , it’s his home.
| A．In all | B．After all | C．In other words | D．To be frank |
．She is a diligent student, and all her spare time she has staying in the library.
| A．is spent | B．spent | C．to spend | D．to be spent |
I still remember how many years ago I last met her in the countryside.
| A．when it was | B．was it that | C．when was it | D．it was that |
．His proposal is so idealistic that there are many difficulties in putting it into practice.
| A．familiar | B．relative | C．practical | D．terrible |
As nobody here knows what is wrong with the machine, we send for an engineer to handle the problem.
| A．should | B．must | C．can | D．would |