> 英语 >
three years___ a long time for us students.A are B be C is D have been
人气:177 ℃ 时间:2019-08-20 20:22:20
解答
c is 时间作主语 谓语动词用单数
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版