题目内容
20、While building a bridge over the Changjiang River， ．
A．a big rock was discovered in the water
B．there was a big rock discovered
C．a big rock discovered in the water
D．the workers discovered a big rock in the water
试题答案
20、D
相关题目
题目内容
20、While building a bridge over the Changjiang River， ．
A．a big rock was discovered in the water
B．there was a big rock discovered
C．a big rock discovered in the water
D．the workers discovered a big rock in the water
试题答案
20、D