Last week, Susan and David, ______ our university’s student association, met the Chinese guests at the New York airport.
| A．to present |
| B．representing |
| C．represented |
| D．having represented |
TheUnitedNations____in1945.
| A．werefound | B．werefounded | C．wasfounded | D．wasfound |
I,who _____yourgoodfriend,willshareyourjoysandsorrow.
| A．am | B．is | C．are | D．was |
Betweenthetwobuildings _____amonument.
| A．stand | B．stands | C．standing | D．isstanding |
Layingeggs____theantqueen’sfull-timejob.
| A．is | B．are | C．has | D．have |
Peter,perhapsJohn,____playingwiththelittledog.
| A．is | B．are | C．were | D．seems |