选择正确的词填空.
1.Samislooking()inthemirror.
2.Childrenenjoyed()attheparty.
3.Idomyhomeworkby().
4.Boys,youshouldwash()beforedinner.
5.Bobmakeshisbedby()everyday.
6.Wecleantheclassroomby().
7.Thelittlebirdcanflyby().
8.Tom,youshouldcleanyourclothesby().
myselfyourselfherselfitself
himselfthemselvesourselvesyourselves