The relationship ___________/bi’twi:n /Chinese and African people is important.

The earth is years old.

The great Swiss tennis player, Martina Hingis was born _______1980.[ ]

________ 8:00 of August 8, 2008, Beijing will hold the 29th Olympic Games. [ ]

Johan didn’t review(复习)lesson, ________ he couldn’t answer the teacher’s question.[ ]