题干
根据提示，补全对话。
—____ is it?
—It's sour.
—____ is it?
—It is a lemon.
答案(点此获取答案解析）
How,What
根据提示，补全对话。
—____ is it?
—It's sour.
—____ is it?
—It is a lemon.
