1£®According to the investigation, there are six million inhabitants (¾ÓÃñ) in the city.

2£®Within the next 100 years, mankind (ÈËÀà) may no longer use radio.

3£®Try to avoid being subjective (Ö÷¹ÛµÄ) and one­sided when looking at problems.

4£®Under the guidance (Ö¸µ¼) of the expert, we have made great progress.

5£®He undertook (Ðíŵ) to finish the job by Friday after I reminded him many times.

6£®Most of the people don't advocate (Óµ»¤) building large factories in this area.

7£®The department concerned is making a thorough (Ï꾡µÄ) investigation into the incident.

8£®His long absence (ȱϯ) from work delayed his promotion.

9£®Racial discrimination (ÆçÊÓ) against Afro­Americans may still exist.

10£®I planned to have the photograph enlarged (·Å´ó) and hang it on the wall.