There ____ a book on the table. There ____ some rulers on the desk. There is ____ teacher in the room. There are ____ clocks on the walls. There ____ a bookcase in the room. There ____ ____ books in the bookcase. There ____ ____ pencil case and ____ apple in the bag.

There is/There are

由
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?