在下列各句的空白处填入一个适当的词，使句子意思完整，语法正确。

1．I went to Beijing last year and fell in love ___________ it．

2．You’ll be able to make a living doing __________ you love．

3．Last week，she borrowed my dictionary and didn’t _________ it．

4．The boy was geeing out of the __________ in the bathroom at that time

5．Lucy is very shy．She gets ___________ when she speaks in front of the class．