10th English: Part: B Grammar Challenge: 59
Question 1 of 16 Score: 0 1. Combine using “which”. The scientist developed a device. It saves electricity. The scientist developed a device which save electricity. The scientist developed a device which saving electricity. The scientist developed a device which saves electricity. The scientist developed a device which saved electricity. Correct Answer: The scientist developed a device which saves electricity. 2. Change into passive voice. The students decorated the school hall. The school hall is decorated by the students. The school hall was decorating by the students. The school hall has de...