问题
选择题
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
答案
答案:B
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
答案:B