Up to now, no one has come up with a(n) explanation of why dinosaurs died out, and it remains a mystery.
If passers-by __________ a blind eye to the injured little Yueyue in Foshan Guangdong, she __________ alive now.
It was the training __________ he had as a young man __________ made him such a good engineer.
This restaurant has become popular for its wide________of foods that suit all tastes and pockets.
I haven’t seen Sara since she was a little girl,and she has changed beyond________.
The doctor is skilled at treating heart trouble and never accepts any gift from his patients,so he has a very good________.