1、The lecturer wandered from his text to _____ on a point that had obviously caught his audience's interest.（单选题）
2、It can be inferred from the passage that _____（单选题）
A. Immigrants are prepared to work harder for less pay, which can stimulate the locals to work even harder.
B. With the increasing number of Diasporas, they will form a new nation in the world.
C. The number of skilled migrants returning home is increasing.
D. The networks of kinship and language contribute to international business by taking advantage of legal loopholes.
3、The author of the report is well _____ with the problems in the hospital because he has been working there for many years.（单选题）
4、I still have to write up the minutes of the Annual General Meeting, but I've not got _____ that yet.（单选题）
A. down on
B. in on
C. round to
D. away with
5、All the following can be employed to make the report more effective EXCEPT_____.（单选题）
A. providing more vivid pictures and details
B. changing the style to cater for the audience’s appetite
C. more live coverage to replace the linguistic explanation
D. interval shifts of the materials of the coverage