Regional unemployment and regional recession are an economic loss to the whole nation and they cannot ______ themselves on their own.

单项选择题Despite all the policeman's questions the lady continued to ______ that she was innocent.

单项选择题Hardly a week goes by without some advance in technology that would have seemed ______ 50 years ago.

单项选择题Anyone who can study abroad is fortunate; but, of course, it is not easy to make the ______ from one culture to another.

单项选择题All unattractive women executives were thought to have more ______ and to be more capable than the attractive female executives.

单项选择题All efforts to ______ him with his elder brother proved in vain; they didn't talk to each other as before.