Question

Vice-President Xi Jinping’s five-day official visit 48.________ the United States from Monday starts this year’s high-level interactions between China and the US.

  49._______ countries have attached great importance to Xi’s visit, because it is meant to further advance their cooperative partnership based on mutual respect and mutual benefit. The new tone for China-US ties was set by President Hu Jintao and US President Barack Obama 50._____ Hu paid 51._____ state visit to the US at the beginning of last year.

  Xi is expected to settle the details of bilateral relations with US officials 52._____ that the two sides can fulfill the commitments they have made and expand 53._____ ties further.

  China-US relations have progressed 54._____ imagination and the friendship between peoples of the two countries has deepened greatly since Xi’s last visit to the US 27 years ago. 55.______ the average one-day bilateral trade volume is more than $ 1.2 billion today is just one proof for that.

Answer

  to

 Both

 when

 a

 so

 the/their

 beyond

 That

【解析】

  to 此处的pay是个名词，介词用to。

 Both 是指中国与美国两个国家。

 when when引导一个时间状语从句。当胡锦涛主席在去年年初对美国进行国事访问时。

 a   pay a visit to…对…进行访问

 so  so that引导目的状语从句。习近平被期望解决中美双边关系这样双方能够实现他们曾作出的承诺。

 the/their 进一步扩大他们的关系。

 beyond   beyond imagination 无法想象的

 That  That引导主语从句，只是起连接作用，在从句中不充当成分。