Ⅰ.单句语法填空
1．Although he has become wealthy (wealth), Mr Wood remains what he used to be, modest and friendly.
2．I am pleased to be invited (invite) to give a lecture on astronomy.
3．When the lost boy saw the smoke rising in the distance, he became excited immediately.
4．Linda said she would meet Tom and that she wouldn't tell anyone about the appointment.
5．Due to a technical problem, the concert will start approximately (approximate) half an hour later.
6．Terrified (terrify) by the sight of the lion, the young hunter had to climb up the tree quickly.
