I can never forget the day _______ we worked together and the day ______ we spent together.
We had a hard life _____ in my childhood.
-----Why does Ling Ling look so unhappy? -----she has_____ by her classmates.
----You’re drinking too much.----- Only at home. No one ______ me but you.
I really can’t decide _____ first. A small computer or a big one?
-----Was the class long enough?-----No, _______ enough.