①
1.There is
2.There are
3.There is
4.There are
5.There are
②
五个盒子:Five boxes/cases
关门:Close the door
擦椅子:Wipe the chair
迟到:Arrive late
在美术室里:In the art classroom
一张海报:A poster
开窗户:Open the window
去上学:(To) go to school
在黑板上:On the blackboard
讲台:Podium
③
1.There are twenty bags behind the chairs.
2.Please open the door.
3.How old is his uncle?
4.Is there any tea in the cup?
5.(There) (are) two buildings (in) our school.
这是正确的答案,
希望及时采纳—— ♥ 多谢 ⌒_⌒