A.excite; exciting | B.excited; exciting | C.exciting; excited | D.excited; excited |
A.littering; clean | B.throw; dirty | C.throws; messy | D.throwing; messy |
A.living at | B.lives on | C.living in |
A.is | B.are | C.have |
A.keeping | B.keeps | C.keep |
A.Do, throw | B.Did; threw | C.Are; throwing |