could you please look after my dog___ i am away? A. when B. while C. if 选哪个,请给出分析,谢谢
问题描述:
could you please look after my dog___ i am away? A. when B. while C. if 选哪个,请给出分析,谢谢
答
could you please look after my dog___ i am away? A. when B. while C. if 选哪个,请给出分析,谢谢