________ the first lap, he was behind the others.But ________ the end of the third lap, he was first!

1. A.
   At, on
2. B.
   On, at
3. C.
   On, on
4. D.
   At, at

________ the first lap, he was behind the others.

But ________ the end of the third lap, he was first!

[　　]

________ the first lap, he was behind the others.

But ________ the end of the third lap, he was first!

[　　]

______ the end of the second lap．Lin Tao was the first．　　　

[　　]

A．In　　　B．At

C．By　　　D．On

　　Our school held a sports meet on the playground. Mr. Hu stood at the starting line and the winners got ready to run. 1 But soon Wu Dong caught up with her. At the end of the race, 2 “Did Wu Dong win the girls' 100-metre race?” a student asked.“Of course, she did,” Li Ming answered. “She ran much faster than the other girls.”

　　At the 1000-metre race, 3 “Come on!” his friends shouted. A few minutes later, 4 In the relay race, the Class 3 runner and the Class 2 runner were neck and neck at the first lap. They passed on the sticks to the next runners at the same time. 5 In the end, Class 3 won the race. At the closing ceremony（闭幕式）, the headmaster said, “Well done! Congratulations to the winners!”

A．Li Lei was far behind the other runners at first.

B．After they started, Fang Ming was in front.

C．Wu Dong was first past the finishing line.

D．Then the Class 2 runner dropped the stick.

E．Li Lei caught up with the others and won the race.