With the rapid development of medical science, we ___ more new drugs used in the treatment of cancer.
—It is the first time that I ________ here in Hong Kong.—What great changes!It’s ten years since I ________here last time.
I knew ________ John Lennon,but not ________ famous one.
Having been walking for nearly an hour , I ______ a good sleep in bed .
_____ it rains tomorrow? I think we’d better take umbrellas.
A modern city has been set up in ______ was a wasteland ten years ago.