This speech may serve as a reply to those () questions have a bearing on our government's foreign policies.

单项选择题That father cannot even discipline himself, () setting a good example to his children.

A. let alone
B. much less
C. still less
D. not to mention

单项选择题If people do not tell () for an electronic computer to do, it will accomplish nothing. This is the reason why electronic computers will never be able to replace man.

A. that
B. what
C. how
D. when