─I’m checking my email. What about you? ─I ________ photos to Chris.
My aunt is a writer. She ______ more than ten books since 1980.
--- Excuse me, could you tell me how ______ to Beijing Zoo? --- Well, you may take Bus No.27.
Where's Tom? His mother ______ him now.
Paul and I ______ tennis yesterday. He did much better than I.
I knocked on the door but ______ answered.