51. What is your date of birth ?  When __________________________________________________________________ 52. When Minh was small, he usually slept with his brother.  Minh used ______________________________________________________________ 53. It’s three years since I started using this bicycle.  I have __________________________________________________________________ 54. No one has ever answered the questions.  These questions __________________________________________________________ 55. Julia is talking with a dump man. Teacher: Thanh Huyen Le 0986.08.05.88  The man who ____________________________________________________________ 56. I’ve arranged to meet Mr.Trung tomorrow evening.  I’m ____________________________________________________________________ 57. He was in the habit of getting up very late.  He used ________________________________________________________________ 58. He is talking to the girl with long hair.  The girl whom ___________________________________________________________ 59. “You’d better go to see the doctor immediately.”  She advised _____________________________________________________________ 60. They want to buy a bigger house but they don’t have enough money.  If they _________________________________________________________________