Why would Cece use an envelope from the place where she used to work?為什么茜茜會用她之前工作過的地方的信封

used to過去常常

I used to look on him as a friend.

我以前把他看作是一位朋友。

People in this locality used to take two meals a day.

這兒的居民過去每天吃兩餐飯。

Do you think she wants us to find out it's her?會不會想讓我們知道她是誰

find out發現；找出來

Find out what the conditions of the contract are.

弄清楚合同的條件是什么。

I'd like to find out about train to Las Vega.

我想知道去拉斯維加斯的情況。

her mother's muddy shoe suddenly shows up.她媽媽臟兮兮的鞋子還突然出現了

show up揭露；露面，出現

The cracks in the wall show up in the sunlight.

在太陽光照射下，墻上的裂紋就顯露出來。

What puzzles me is why they didn't show up.

令我百思不解的是他們為什么沒有出現。