It is not always easy for the public to see ________ use a new invention can be of to human life.
| A．whose | B．what |
| C．which | D．that |
--- Guess what! I came across an old friend at the party last night.
--- ______ I’m sure you had a wonderful time.
| A．Sounds good! | B．Very well. | C．How nice! | D．All right. |
My patience is ________.
| A．running over | B．running out of | C．running out | D．using up |
Don’t expect too much of him, and after all, he is a child of ______ intelligence.
| A．average | B．slight | C．strange | D．different |
.People who do not smoke have less ____________ of suffering from lung cancer than those who do so.
| A．potential | B．cause | C．hope | D．choice |
In April, 2009,President Hu inspected the warships in 
Qingdao, ______ the 60th anniversary of the founding of the PLA Navy.
| A．marking | B．marked | C．having marked | D．being marked |