7、pencilinthepencil-box.Therearethreebooksonthedesk.用be动词is/are填空:1、Thereapencilinthepencilbox.2、Theresomeflowersonthedesk.3、Therefourpeopleinmyfamily.4、Thereapictureandtwomapsonthewall.5、A:thereacatunderthetree?B:Yes,thereisareareisIsis1.There_____aclockonthetable.A.is B