Ⅰ.根据提示写出单词的正确形式
1．She hides (躲藏) herself away in her office all day.
2．He pretended (假装) to his family that everything was fine.
3．The missing boy was seen wandering (徘徊) by the river just now.
4．Now, it's time for us to book (预订) our train tickets.
5．The headmaster extended (延长) our holiday by four days.
6．Although it has been years, that event is still fresh in my memory (memorize)．
7．There is some confusion (confuse) about what the correct procedure should be.
8．This room has an elegant (elegance) atmosphere with these furniture.
9．I used to believe my mother had magical (magic) powers.
10．It's surprising that this old custom should have revived (revival)．
