1.Tom has been(be) ill for a week. 2.The lady has written(write) 3 books since 1990. 3.Have you received(receive) any letter from Tom since be left us. 4.I'm sorry,but Mr.Smith has been(go)home already. 5.Geoge hasn't handed(not hand) in his exercises yet. 6.Have you typed(type) the letter yet? Yes.I have. I typed(type) it last night. 7.Have you been(be)to the hospital yet
