2级

单选题"In the past we were a lonely car maker, but we had good business," says Bernd Engelstadter, technical executive director at Shanghai Volkswagen, adding to he arrived in China seven years ago "competition was not a problem".

参考答案:C进入在线模考
结构应用
adding...这部分在句中是现在分词短语做伴随状语,而伴随状语从句中又带一个复合句表示:当他七年前到中国时“竞争不是个问题”,因此adding后应是一个that引导的从
句,在这一从句中的时间状语应用when来连接;因此C为答案。