38. We have a plan to learn English in the Philippines next month. A. We intend to learn English in the Philippines next month. B. We are going to learn English in the Philippines the next month. C. We plan learning English in the Philippines next month. D. We planned to learn English in the Philippines next month. 39. We had to wait for him for ages, but he didn’t arrive. A. We had to wait for him for a long time, but he didn’t show up. B. We had to wait for him for many years, but he didn’t arrive. C. We had to wait for him for a long day, but he didn’t go up. D. We had to wait for him for a long time and he arrived. 40. The government evacuated the villagers due to the serious flood. A. The government evacuated the villagers because of there was a serious flood. B. Because the government evacuated the villagers, there was a serious flood. C. The government evacuated the villagers since there was a serious flood. D. The government evacuated the villagers since the serious flood. Giải thích tại sao