Ai giải giúp mình 1. My grandfather _____________ (die) after he _______________ (be) ill for a long time. 2. Mary _______________ (burn) her hand when she __________________ (cook) dinner. 3. While we _________________ (cross) the street, the policeman _______________ (shout) at us. 4. While I __________________ (walk) around the park, I ____________ (see) Mr. Smith. 5. As he _______________ (drive) on a highway, he met a terrible accident. 6. Tom is cleaning the floor while his mother ______________ (cook) dinner.
2 câu trả lời
1.died/had been
2.burned/was cooking
3.were crossing/shouted
4.was walking/saw
5.was driving
6.is cooking
1, died-had been
2, burned-was cooking
3, were crossing-shouted
4, was walking-saw
5, was driving
6, is cooking
hok tốt
