67. She......(play) the piano when our guests......(arrive) last night.
68. My mother......(come) to stay with us next weekend.
69. We......(not live) in England for the last two years.
70. I never......(forget) what you just......(tell) me.
71. When the teacher came in, the pupils......(play).
72. I didn't know what time it......(be), so I......(turn) on the radio.
73. She says that the......(live) in the country when she......(be) a child.
74. Mary......(not/ eat) meat. She is a vegetarian.
Giúp mik vs mik sẽ đánh giá, please!