there have been是现在完成时。 例句： There have been several muggings here recently. 最近这里发生了几起行凶抢劫案。 There have been strange happenings here lately. 这儿最近发生了一些怪事。 扩展资料 There have been proposals to drill for...

发布时间：2025-08-20 浏览量：34