there be 句型 — 英语选择题
题目
一个托盘里恰好有一株蕨类植物。根据描述,选择正确的问答。A. Are there one fern on the tray? Yes, there are. B. Is there one fern on the tray? Yes, there is. C. Is there two ferns on the tray? Yes, there is. D. There is one fern on the tray? Yes, there are.