Giúp mình với ạ, cảm ơn IV. Change clauses of reason to phrases. 1.Mary didn't go to school yesterday because she was sick. 2.She went to bed early because she felt tired. 3.Ann didn't go to the circus with Betty because she had a bad cold. 4.John succeeded in his exam because he worked hard and methodically. 5.Margaret stayed home because her mother was sick. 6.I like him because his father is kind to me. 7.I can't eat these fruits because they are green. 8.I couldn't do the test because it was difficult. 9.I couldn't read the letter because it was dark. 10. He came late because it rained heavily. 11.I can't study because it is noisy. 12. The train came late because it was foggy. 13. All the teachers love him because his conduct is good. 14. The train was late because the fog was thick. 15. We stopped our car because the traffic lights turned red. 16. The plane couldn't take off because the weather was bad. 17. Rice plants grow well because the climate is warm and damp. 18. He couldn't drive fast because the street was crowded and narrow.