Look at the skirt. I bought it for my daughter ______ Children’s Day. [ ]

Oh, it tastes quite good. May I have _________ cup of coffee? —OK. Here you are.

How old is your daughter? — ______ . We had a special party for her _____ birthday last week.

No sooner had I come to the office _____ the boss told me that I was fired.

All of us found ________ hard to get along with him, he was too strict with others but not with himself.