44. Jack is 1.8 m tall.
=> How tall is Jack?
45. They have three children.
=> How many children do they have?
46. Shakespeare wrote Hamlet.
=> Who wrote Hamlet?
47. The Browns are planting trees in the garden.
=> Who is planting trees in the garden?
48. This car belongs to my grandfather.
=> Who does this car belong to?
49. Minh goes to bed at 10.00.
=> What time does Minh go to bed?
50. She calls the police because she gets lost.
=> Why does she call the police?