47. Although he took a taxi, he still arrived late for school. A. In spite of the taking a taxi, he still arrived late for school. B. In spite taking a taxi, he still arrived late for school. C. Despite of taking a taxi, he still arrived late for school. D. In spite of taking a taxi, he still arrived late for school. 48. Global warming has caused many natural disasters. A. Many natural disasters have been caused by global wanning. B. Many natural disasters have caused by global warming. C. Many natural disasters have be caused by global warming. D. Many natural disasters caused by global warming. 49. As soon as we got on the plane, the pilot told us to get off again. A. We had just got on the plane when the pilot had told us to get off again. B. We had just got on the plane before the pilot told us to get off again. C. The pilot had told us to get off again before we got on the plane. D. The pilot told us to get off again before we had got on the plane. 50. Peter is so kind to help .the injured people. A. It’s Peter so kind to help the injured people. B. It’s so kind of Peter for helping the injured people. C. It’s so kind of Peter to help the injured people. D. It’s so kind that Peter helping the injured people