题目

【小题1】This book is not useful for today's students. This book is    ▲   for today's students.【小题2】 Mary has been in Hong Kong for a month. Mary    ▲   Hong Kong a month ago.【小题3】 In the past people thought the earth was flat. People    ▲   to think the earth was flat.【小题4】The family didn't have enough money to send her abroad. The family couldn't    ▲   to send her abroad.【小题5】There were about fifteen people in the room, and most of them were women. There were about fifteen people in the room,    ▲   women. 答案：解析:略

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