根据括号里的提示完成句子
1、Arethesekey____?(you)
2、Thisboat____tosallythreeyearsago.(belong)
3、Thesetwopensare_______(I)
4、Whosearethesenotebooks?Theyare_____(Amy)
5、Arethoseblackumbrellas_______?(they)
6、Therearesomeforksontheshelf.Theyare____.(we)
7、Thatbeautifulwatchbelongsto______.(she)
8、Canyoubuysomeflowersfor_____?(he)
9、Did_____sistergototheoffice?(you)
10、Thenewpicturesbelongsto_____.(we)