----- Nội dung ảnh -----
R. Rewrite the following sentences without changing their meaning.
Question 48. She was cooking in the kitchen. He was looking after their child. (while)
Question 49. I was reading an article about General Vo Nguyen Giap. My friend called me. (when)
Question 50. Minh was having dinner. Hoa called Minh. (while)
Question 51. We turn off the light often. This is a good way to save energy. (which)
Question 52. Many people throw away plastic bottles. This is linked to pollution. (which)
Question 53. She didn't have enough money. She had to go home early because of this reason. (which)

---THE END---