She had the ____ amount of money in her hand and seemed very

She had the ____ amount of money in her hand and seemed very sure of herself．
Smoking is harmful to health．Our tobacco-seller, Mr．Johnson,always asks his customers, if they are very young, whom the cigarettes arebought __11__．One day, a little girl whom he had never seen beforewalked into his shop and demanded twenty cigarettes．Shehad the __12__ amount of money in her hand and seemed very sure of herself．Mr．Johnsonwas so __13__by her confident manner that he forgot to ask his usual question．__14__,he asked her what kind of cigarettes she wanted．The girl replied readilyand handed him the money．While he was giving her the__15__, Mr．Johnson said laughingly that as she was so young sheshould __16__ the packet in her pocket in case a policeman saw it．__17__,the little girl did not seem to find it funny．Without even smiling shetook the packet and walked towards the door．Suddenly she stopped,turned __18__, and looked at Mr．Johnson．Therewas a moment of silence and Mr．Johnson __19__ what she wasgoing to say．All at once, in a clear, firm voice, she said “My dadis a policeman,” and with that she walked quickly __20__ the shop．

11．A．with B．to C．for D．by
12．A．exact B．some C．large D．enough
13．A．worried B．annoyed C．surprised D．pleased
14．A．Therefore B．Instead C．Anyway D．Somehow
15．A．change B．warning C．bill D．cigarettes
16．A．cover B．hide C．dip D．take
17．A．NeverthelessB．Moreover C．Therefore D．Then
18．A．away B．round C．over D．aside
19．A．wondered B．considered C．doubted D．expected
20．A．into B．outof C．on D．away

在线跪求,请花点时间回答,我的问题是每一题选什么?为什么选?
谢!

11、C the cigarettes are bought for whom,为谁买的烟
12、A exact amout,整好的钱数
13、C 因为惊讶所以忘了问问题
14、B 取而代之的.instead 是“不是...,而是..."的意思.
15、D 给她烟
16、B 把烟藏在口袋里
17、A 前后句是转折关系,只能选A
18、B turn around：转身
19、A wondered：好奇.doubted是质疑,不合题意
20、B 走出商店,walk out of the shop