Doctor Adams explained that not all bacteria harmful.A、wereB、areC、wasD、is B

游客2024-01-01 46

问题 Doctor Adams explained that not all bacteria harmful.

选项 A、were
B、are
C、was
D、is

答案 B

解析

转载请注明原文地址:https://www.tihaiku.com/zcyy/3324244.html

相关试题推荐

随机试题

最新回复(0)