Điền đại từ quan hệ phù hợp vào chỗ trống

Điền đại từ quan hệ phù hợp vào chỗ trống
They gave flowers to the girl......they admired a lot
The bear.......is kept in the struck is from Africa
I'll always remember the day........I first saw that sight
They march in the streets....the first May Day meeting was held hundred years ago