Question

---I rang you yesterday afternoon. A man answered, but I didn’t recognize the voice.--- Oh, it ..

---I rang you yesterday afternoon. A man answered, but I didn’t recognize the voice.--- Oh, it ____ my uncle. He was in my room then. A．must have been B．should have been C．must be D．should be

Answer 1

A

考查情态动词表推测。因为是对过去事实表推测，要用情态动词加完成时态，排除C,D；should have been表本应该是实际不是；must have been肯定是；根据He was in my room then，可知是我叔叔的可能性很大。所以选A。