I go to bed ______9:30 in the evening. [ ]
A. in
B. at
C. under
D. on
答案：B
比80米少30%是______米；比180元少10%是______元．
Everyone who comes to the party is given a wooden apple with _____ own names cut in it as a souvenir.
A．his
B．her
C．their
D．our
