题目内容
Only then, _____we ____that the trapped miners were in danger when the flood water dripped into the tunnels.
| A.have; realized | B.did; realize |
| C.do; realize | D.had ; realized |
B
略
练习册系列答案
相关题目
题目内容
| A.have; realized | B.did; realize |
| C.do; realize | D.had ; realized |