66. Ba went to school on foot a week ago .
67. Is your mother watch TV in the living room at the moment ?
68. Last night , we did homework at 7.00 and went to bed at 9.30 .
69. Hoa will buy a new bicycle next week .
70. Why do not they go to work by bus every day ?
66. Ba went to school on foot a week ago
67. Is your father watching TV in the room at the moment?
68. Last night we did homework at 7.00 and went to bed at 9.30
69. Hoa will buy a new bicycle next week
70. Why don't they go to work by bus every day?

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