解放军文职考试：现在完成时经典例题

现在完成时经典例题

Mary has __________ herself __________ for the party.

A．held; up

B．attended; to

C．done; up

D．turned; up

答案 :
C
—Look, John"s fallen asleep at work!
—Oh, he must have stayed ________late last night.
答案 :
up