C．command D．impression

　　解析：选C　本句表示"一旦你熟练掌握了这个诀窍，那就'没什么'了"。command意为"掌握"，have a good command of意为"熟练掌握"，符合题意。

　　Ⅱ.语法填空

　　The Other Side of the Wall

　　There was a young woman who took great pride in her flower garden. She was raised by her grandmother, who taught her to love and care for flowers, so her flower garden was __1__ best in her town.

　　One day, while she was looking through a flower list from which she often __2__ (order), a picture of a plant caught her eye. She had never seen blooms (花) on a plant like that before. "I have to get it，" she said to herself, and she immediately ordered it.

　　When it arrived, she had already got a place __3__ (prepare) to plant it. She planted it at the back of her yard. It grew well, with beautiful green __4__ (leaf) all over it, but there were no blooms. Day after day, she continued to water it and feed it. She even talked to it, __5__ (try) to make it bloom. However, it was useless.

　　Then, one morning weeks __6__， when standing before the vine (藤蔓), she felt very disappointed that her plant had not bloomed. She was giving thought to cutting it down and planting something else in its place.

　　It was at this point that her neighbor, whose yard joined __7__ (her), called over to her. "Thank you so much! You can't imagine how much I have enjoyed the blooms of that vine you planted."The young woman walked __8__ the gate into her neighbor's yard, and sure enough, she saw that on the other side of the wall the vine was filled with blooms.

　　They were indeed the most beautiful blooms she had ever seen. The vine had grown through the crevices (裂缝) and it had not flowered on her side of the wall, __9__ it had flowered on the other side.

　　Sometimes one may not see the good result of his effort, but that doesn't mean it isn't __10__ (success)．

语篇解读：有位女孩非常喜欢花，有一天她把一株非常漂亮的花种植到自己的院子里。她细心照料，却只见绿叶不见花。偶然一天，却发现在墙的另一侧开满了漂亮的花朵。

　　1．the　句意：她由祖母养大，祖母教会她热爱和照顾花儿，因此，她的花园是镇上最好的。根据本空后的best可知，此处为形容词的最高级，故填定冠词the。

　　2．ordered　句意：有一天，在浏览之前经常订购的鲜花订购单的时候，一株植物的图片吸引了她的注意。根据时间状语One day可知，此处讲述的是发生在过去的事情，应用一般过去时。故填ordered。

3．prepared　句意：当它到达时，她已经准备好一个地方来种这种花。此处为"get＋宾语＋宾补"结构，prepare与a place之间为被动关系，故用过去分词作宾补。故填prepared。