Is is not polite ____ others while they are talkingA.break B.brokenC.breakingD.to break
问题描述：
Is is not polite ____ others while they are talking
A.break
B.broken
C.breaking
D.to break
答
我选D,因为这句话是在别人说话前讲的。
答
D.固定句型It is+adj+to do
答
选D ,是it is +形容词+to do sth
答
d