The research team never gave up (try) ______ although they had failed several ti

游客2023-10-03 98

问题 The research team never gave up (try) ______ although they had failed several times.

选项

答案 trying

解析

转载请注明原文地址:http://tihaiku.com/zcyy/3067118.html

相关试题推荐

随机试题

最新回复(0)

Thefoodweeatseemstohaveprofoundeffectsonourhealth．Althoughscienc