Directions: In this section, there are 10 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A , B, C, and D.
______ he is concerned, things are going well and he has no difficulty handling the business.
A．As far as
B．As soon as
C．As long as
D．As well as
解析：此句是强调句，强调句的句型是“It is+被强调部分 + that／who + 其他成分”。如果被强调部分是人，要使用“who”，其他情况均使用“that”。此题强调“in China”，因此答案为A。