根据下列各句句意以及所给单词的首字母或汉语提示,写出该单词的正确形式。
1.
We need to know the e______
time the accident happened.
2.
English was my favourite of all my school s______.
3.
The woman paid for her p______
and left the supermarket.
4.
You have to face r______,
and don&
rsquo;
t always hide yourself in the world of the Internet.