题目内容
选择正确的字母或字母组合，补全单词。
b_ding
[ ]
A．iul B．uil C．il D．ilu
cl_ssr_m
A．a,oo B．u,oo C．a,ou D．o,ou
s_bj_ct
A．u,i B．a,e C．a,i D．u,e
_____p______r______
A．a,e,a B．o,e,a C．o,a,a D．a,a,a
pict______
A．ure B．rue C．uer D．cer
