1.One of us often ----（climb） this tree.2.Aft

1.One of us often ____（climb） this tree.2.Aft1.One of us often ____（climb） this tree.2.After a long walk,____(final)he arrives at his home.3.He is busy____(study)English.4.Don't____(forget)____(close)the door.用所给单词的适当形式填空