)These are times _____an activity goes very smoothly and brings great happiness. A. in which B. which C. that D. when

)These are times _____an activity goes very smoothly and brings great happiness.

A. in which
B. which
C. that
D. when

出自：山东第一医科大学英语3

提示：
每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10253414】个 (题库试题定时更新)