1. I _HAVE BEEN RINING_ the bell for the last quarter of an hour, (to ring) (Maugham) 2. I want to see how much he _HAS CHANGED_ since I saw him last, (to change) (Voynich) 3. _HAVE _ you _HAD_ any word from her since she left here? (to have) (Dickens) 4. I don't want to take a cure at all. I am perfectly happy. All my life I _HAVE BEEN_ perfectly happy. (to be) (Hemingway) 5. Signora Grassini greeted Gemma affectionately, exclaiming in a loud whisper: "How charming you _ARE LOOKING/LOOK_ tonight!" (to look) (Voynich) 6. Here's my keys. I _AM LEAVING_ (to leave) (Gow and D’Usseau) 7. I _HAVEN'T SPOKEN_ to Mr. Boldwood since the autumn. I want to explain. I _HAVE LONGED_ to do it ever since I returned, (to speak — nej»tive, to long) (Hardy) 8. I requested them to suspend their decision until they. _READ_ my narrative, (to read) (Collins) 9. Wait till you _SEE_ Moose and _TALK_ with him. (to see, to talk) (Aldridge) 10. "But what _SHALL/WILL_ we _DO_ ?" she asked. "I _AM THINKING_ about it a lot. I _HAVE BEEN THINKING_ about it all week. But 1 _I DON'T KNOW_ what to do." (to do, to think, to think, to know — negative) (Caldwell) 11. I muet not let my eyes get all red and swollen, or Henry'll know I _WAS CRYING_ (to cry) (Maugham) 12. The sun _SHINES_ with different degrees of heating power in different parts of the world, (to shine) 13. "Look," I said, "I _KNOW_ Francis very well. I _HAVE KNOWN_ him since we were very young men." (to know,! to know) (Snow) 14. "Well, I _HEARD/HAVE HEARD_ that Iris isn't going to be married," I said after a while, (to hear) (Maugham) 15. He says he _HAS BEEN LISTENING_ to the same tunes for fifteen years, (to listen) (Maugham)