_______ a precious diamond necklace for his wife, Martin could hardly afford a tie for himself．
| A．Having bought | B．Buying | C．Being bought | D．To buy |
The expert warns the Internet users not to ______ their personal information to strangers.
| A．put out | B．carry out | C．take out | D．give out |
---- Helen seems very happy.
----Yes, she appears ______ in the job interview.
| A．to have been accepted | B．to be accepted |
| C．having accepted | D．being accepted |
Either you or one of your students______ to attend the meeting that is due tomorrow.
| A．are | B．is | C．have | D．be |
By the time the police came to rescue the old woman, she _______for four days under the house.
| A．buried | B．had buried | C．had been buried | D．has been buried |
Recently I bought an ancient vase, ______ , I think, was quite reasonable.
| A．which price | B．the price of whose |
| C．its price | D．the price of which |