giup em voi em cam on

56. The bus which I take to school every morning is alsways crowded. (vật -> which)
57. Do you know the girl whom Tom is talking to? (người, là tân ngữ -> whom)
58. We are visiting Ha Long which is in the north of Vietnam. (Vật, làm chủ ngữ -> which)
59. They are the children whose team won the match. (Sở hữu -> whose)
60. We are talking to Vietnam whose population is 87 million people. (Sở hữu -> whose)