I. Rewrite the following sentences, keeping the meaning unchanged. 1. We didn’t enjoy the trip because of the heavy rain. The heavy rain prevented............................................................  Because …………………………………………………………………………………………………….. 2. Mr. Thanh couldn’t enjoy the meal because of the stomachache. The stomachache prevented..................................................................  Because …………………………………………………………………………………………………….. 3. Lan didn’t go to school yesterday because of her sickness. Because Lan........................................................................................... Lan’s sickness ………………………………………………………………………………………………………. 4. The buses couldn’t run because of the storm. The storm prevented........................................................................... Because …………………………………………………………………………………………………….. 5. Because he was ill, he couldn’t go to school.He couldn’t........................................................................................... His illness …………………………………………………………………………………………………………. 6. I couldn’t listen to the radio because of the noise. The noise prevented...................................................................... Because …………………………………………………………………………………………………….. 7. Her laziness makes her parents sad. Because of ........................................................................................... Because ................................................................................................ 8. The toothache prevented me from liking the party. Because of .................................................................................... Because …………………………………………………………………………………………………….. 9. Mai didn’t enjoy the music because of the stereo.The stereo prevented...................................................................... Because …………………………………………………………………………………………………….. 10. My father couldn’t enjoy the breakfast because of the headache. The headache prevented.................................................................. Because …………………………………………………………………………………………………….. 11. Mary didn’t go to school yesterday because of her illness. Because Mary........................................................................................... Mary’s illness ……………………………………………………………………………………………………. 12. They couldn’t go to school because of the rain.The rain prevented............................................................................ Because …………………………………………………………………………………………………….. 13. Because he was tired, he couldn’t finish the work. He couldn’t.................................................................................. His tiredness ……………………………………………………………………………………………………… 14. I couldn’t study because of the darkness. The darkness prevented.............................................................................. Because …………………………………………………………………………………………………….. 15. His bad marks make his parents unhappy. Because of ........................................................................................... Because ................................................................................................ 16. The stomachache prevented me from enjoying the meal. I didn’t ..................................................................................................  Because ……………………………………………………………………………………………………..