A、<1岁
B、1~1.5岁
C、2~2.5岁
D、>3岁
Theprofessoraskedaquestion,andDavid________agoodanswer.
A、putupwith
B、stoodupfor
C、cameupwith
D、lookeddownupon
CharlesSmith,______wasmyformerteacher,retiredlastyear.
A、which
B、who
C、that
D、as
按计划免疫程序,小儿接种麻腮风减毒活疫苗的适宜年龄是()
A、6个月
B、8个月
C、12个月
D、18个月
Hisarticleisbetterthan_____intheclass.
A、anyone‘s
B、anyoneelse
C、anyoneelse’s
D、anyone‘selse