Giúp em với ạ . Em mới học dạng này nên còn vài câu chưa hiểu , mong mọi người giúp với .
Điền modal perfect
1. I realized that my house was on fire~
That (be) a terrible moment
2. I saw a ghost last night - You(not see) a ghost , there aren't any ghost . You (dream) it.
3. There (be) motor cycles on the sands but as it so wet , they have been cancelled.
4. As I was standing in the hall , your dog bit me.-
It (not be) my dog , he was with me all day. It(be)my brother's
5. The president (unveil) the statue , but he is ill so his wife is doing instead .
6. I didn't recognize the voice at the other end of the line. It(be) my elder sister : she is often at home at that time. It (not be) my younger sister,as she is abroad.