So difficult __________ it to work out the problem that I decided to ask Tom for advice.

 I did find 

did I find

 I have found  

have I found

句子使用的基本句式為so…that…結(jié)構(gòu)。按英語語法，當該結(jié)構(gòu)的so…置于句首時，其后的句子(主句)要用倒裝語序，如：So loudly did he speak that even people in the next room could hear him. 他講話聲音那么大，隔壁屋里的人都聽得見。

Mary and her friend          a plan and gathered forty people from my company to help the homeless people at the Christmas party.

came up with

put up with

caught up with

kept up with

考查動詞短語辨析。句意：瑪麗和她的朋友想出了一個計劃，在圣誕節(jié)聚會上，從我的公司聚集了四十幾個人來幫助無家可歸的人。A. came up with 提出；B. put up with 忍耐；C. caught up with追上，趕上；D.kept up with 跟上。下文“聚集人幫助無家可歸的人”是想出的計劃。故選A項。

My little sister          me into buying this book.

wanted

advised

persuaded

told

考查動詞詞義辨析。句意：我的小妹妹說服我買了這本書。A. want想，想要；B.advised 建議；C. persuaded說服，勸服；D.told告訴。want  sb to do sth想要某人做某事；advise sb to do sth 建議某人做某事；persuade sb into doing sth 勸服某人做某事；tell sb to do sth告訴某人做某事。故選C項。

Inside the window hangs a         carved out of this piece of wood by the artist.

decoration

destination

departure

discipline

考查名詞辨析。句意：窗戶邊上掛著一幅被藝術(shù)家由這塊木頭雕刻的裝飾品。A. decoration裝飾，裝飾品；B. destination目標； C. departure 離開；D. discipline紀律。窗邊應(yīng)掛著裝飾品。故選A項。

It's really           to know that there're only seven bones in giraffes' long necks.

amazingly

amazed

amazing

amazement

考查形容詞辨析。句意：知道長頸鹿的長脖子上只有7塊骨頭，真是令人驚訝。分析句子結(jié)構(gòu)可知，is是系動詞，空格處需填形容詞作表語。主語是It,指物，表示“令人驚訝的”，應(yīng)填amazing。故選C項。

Though it is a          job, he  still devotes much time and energy to it.

poor-paying

poorly-paying

poorly-paid

poor-paid

考查構(gòu)詞法。本題中考查了復(fù)合形容詞的構(gòu)詞法，“使用副詞+過去分詞” 構(gòu)成新的形容詞，如“newly-discovered”最新發(fā)現(xiàn)的；本句中“poorly-paid報酬極少的”。句意：盡管這是一份報酬極少的工作，但他仍然花了很多時間和精力做它。故選C項。

Based on the agreement,all payments          be made by the end of the month.

may

can

shall

will

考查情態(tài)動詞。句意：根據(jù)協(xié)議，所有款項應(yīng)在月底付清。shall用于法律，條款中表示必須要做的事。故選C項。