初中英语词法改错题

短文改错。
Mother’s Day is a popular holiday in many country. It is on the second Sunday in May（五月）It are a day to thank others. In that day we give flowers, cards or other present to our mothers. On the card, we usual write “Thank your, mother”, “To the best father in the world”, “Best wish for Mother’s Day” and so on. On Mother’s Day, we help us mothers do a lots of house work. We try to make our mothers happy.

Who plays the piano　　（beautifully）in your group？

We'll have a party on　　（woman）Day．

We were　　（surprise）to find that no one was hurt．

The cat is running after　　（it）tail in the garden．

We are no longer children．We can make a decision by　　（us）．

I think the　　（twenty﹣one）century will bring us more hopes．

My cousin has collected many　　（watch）so far．