My friend , who ___on the International Olympic Committee all his life, is retiring next month.
A served B．is serving C．had served D．has served
Thepurse_____,theywenttothepolice.
| A．notyetfound | B．has’tbeenfound |
| C．beingnotfound | D．nothavingyetfound |
Theyfirstreachanagreementonthebasicprinciple,thedetails____later
| A．toworkitout | B．havingbeenworkedout |
| C．tobeworkedout | D．beingworkedout |
Christmas____,thefamilywasfullofexcitement.
| A．wasthenonlydaysaway | B．werethenonlydaysaway |
| C．thenonlydaysaway | D．havingbeenthenonlydaysaway |
____fiveminutes____beforethelasttrainleft,wearrivedatthestation.
| A．Therebeing;togo | B．Itwas;left |
| C．Ithad;left | D．Therewas;togo |
Thepowerstationwasbuiltontheriverwithourvillageandsomeothers___withelectricity.
| A．tosupply | B．supplied | C．supplying | D．havingsupplied |