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—This returned Chinese scholar has become one of the top experts in this field .
—Yes , I know him very well . He ____in Africa with wild animals for eight years .
A.has worked B.had worked C.worked D.has been working
查看习题详情和答案>>----This returned Chinese scholar has become one of the top experts in this field.
----Yes,I know him very well.He____in Africa with animals for eight years.
A、has worke B、had worked C、worked D、has been working
查看习题详情和答案>>—This returned Chinese scholar has become one of the top experts in this field .
—Yes , I know him very well . He in Africa with wild animals for eight years .
A.has worked B.had worked C.worked D.has been working
查看习题详情和答案>>