We have been good friends ( )we joined the same ping-pang team.A.after B.before C.since Duntil

分类: 作业答案 • 2023-01-12 20:31:42

问题描述：

We have been good friends ( )we joined the same ping-pang team.A.after B.before C.since Duntil
为什么不能用after
after 前不能用完成时吗

答

选C呢.自从我们加入同一乒乓球队,我们就成了好朋友（现在仍然是）.1、如果用after应该用过去时这么来说：We became good friends after we joined the same ping-pang team.after是基于当时的时间之后的一段时间说的...