A．naturalB．centralC．neutralD．middleI m （） in this argum……

单项选择题If you get into difficulties, don t hesitate to （） help.

单项选择题If I have a good sleep I ll be （） to work out the problem.

单项选择题The football match was （） on account of rain.

单项选择题It is very expensive to （） the fashion.

单项选择题Before using your new pressure cooker, read the following （） carefully.

单项选择题Henry planned to visit （） country besides England.

单项选择题A loud noise （） my attention from cooking and everything was burnt.

单项选择题Many teenagers feel no difficulty （） computer.

单项选择题Some areas, （） their severe weather conditions, are sparsely populated.

单项选择题He might have been killed （） the arrival of the police.

单项选择题Although it s tough finding a job these days, Henry got a （） in a famous company.

单项选择题（） difficulties they may come across, they ll help one another to overcome them.

单项选择题The doctor said that mental （） is the major cause of his sleeping problem.

单项选择题（） comes back first is supposed to win the prize.

单项选择题The last time I saw her was （） my brother s wedding ceremony three years ago.