单选题 Recruitment for new assembly line workers began a month ago ______ is expected to continue for another week.
  • A. as
  • B. in addition
  • C. for
  • D. and
【正确答案】 D
【答案解析】[解析] 语法：连词 1．选项由连词、介词、副词等构成，选择时应注意区分。 2．B选项in addition是副词，不能连接两个句子。 3．只有and能连接动词began和is expected。