按字母顺序排列正确的一项_________________. A.d c e a B.c d e f C.d f g e
Can you imagine what life will be like in _____ time?
Old people must _____.
Where ____ the 2010 World Expo _____?
The little boy in the photo is me. This photo _____ ten years ago.
Millions of trees _____ around our city every year.