Ⅰ.单句语法填空
1．On/Upon seeing his mother，the little boy flew to her and hugged her.
2．In the 1980s，he was on The Times newspaper.
3．To his sorrow，he didn't pass the English exam.
4．Yang Luoshuo，a 92yearold man from Weifang City，Shandong Province，is among those who have had a great love of the arts.
5．A metaanalysis of hundreds of studies concluded that the device was “possibly or probably effective” as__a treatment for depression.
6．We have various summer camps for your holiday，so you can choose one based on your own interests.
