Plans have been proposed ______ the largest dam in the world to be built along the Congo river.
33.Only after he had spent several nights working on the math problem_______to wonder whether the problem was wrongly set.
32.—Why are you so sweaty? --- I__________football with my classmates and how I want to have a drink!
31.______weather it is, we shall set out at 8o'clock.
30.Some children want to challenge themselves by learning a language different from____spoken by their parents at home.
29.Lucy had to shout ___________on the noisy street.