国家开放大学(商务英语3)单项选择题每日一练(2018.12.17)

单项选择题
According to law， taxable services refer to transportation，（） finance， insurance and the like.
A.operation
B.construction
C.introduction
单项选择题
Junior Achievement has（） different stages in its development.
A.gone through
B.got through
C.got over
单项选择题
Does that include the （）turnover in advance？（答案B）
A.to receive
B.received
C.receiving
单项选择题
This article mainly talks about .（）
A.some marketing strategies
B.your potential clients
C.communicative skills
单项选择题
The manager asked me （）I could finish my work before the weekend.
A.what
B.whether
C.which