[跟踪训练]
在空格处填入适当的词(1个单词)或所给词的正确形式
1．He is widely regarded as the most (skill) politician.
2．A (unite) effort is always more effective than an isolated complaint.
3．It will be (challenge) to stay at the top.
4．Jane is well (qualify) for this teaching job.
5．There was a (possible) that I wouldn’t improve.
6．With the election out of the way，the government can get down business.
7．I came here chance and was just watching what was going on，when this girl attacked me.
8．There were 2,250 policemen duty in and around the stadium.
9．The boss asked him to take charge the office for a few days while she was away.
10．You shouldn’t miss the chance going abroad for further study.
