精选优质文档-倾情为你奉上香澳补习学校高中语法训练之介词1. The teacher is writing _ a piece of chalk on the blackboard while the students are writing _ink in exercise books.A. with, in B. in, with C. in, in D. with, with2. The worker can make chairs _ wood, and also can make paper _ wood.A. from, of B. of, from C. of. of D. from, from3. Mary dropped in _ Mr Smith, but he wasn t at home, so she went to drop in _ Mr Smiths office.A. on, on
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