点被告知就好了！if only表示"要是......就好了"，从句使用虚拟语气。根据语境可知，此处表示与过去事实相反的虚拟语气，因此该句谓语动词应使用过去完成时，故选D。

5．It is said that body language ________ 55 percent of a first impression while what you say just 7 percent.

A．lies in B．accounts for

C．consists of D．goes with

答案　B

解析　考查动词短语辨析。句意为：据说肢体语言占第一印象的55%，而你说的话只占7%。lie in在于；account for(数量上、比例上)占；consist of由......组成(或构成)；go with与......相配(或协调、和谐)。

6．Peter will________ his post as the head of the travel agency at the end of next month.

A．take up B．put up C．add up D．break up

答案　A

解析　句意为：彼得将会于下个月底就任他旅游公司负责人的职位。take up开始从事，符合句意。put up张贴，举起，建造；add up合计；break up打碎，解散，结束，分手。

7．Do you know the difficulty he，an elderly person of no family，had ________ five orphans at school?

A．keeping B．to keep

C．having kept D．to have kept

答案　A

解析　句意为：你知道他这样一个孤寡老人供五个孤儿上学的困难吗？have difficulty (in) doing sth.是固定句型，意为"做某事有困难"。本句是这个句型的变形，故选A。

8．Many experts have put forward a series of problems about the people's livelihood，________ the government will undertake necessary surveys.

A．based on which B．basing on what

C．based on that D．basing on them

答案　A

解析　考查定语从句。句意为：关于人民的生计，许多专家已提出了一系列问题，基于这些问题，政府将着手进行必要的调查。先行词是problems，确定是定语从句，排除B项；on是介词，排除C项；两个句子由逗号连接，排除D项。从句还原为：the government will undertake