I ______have come here in time, but I met an old friend of mine. I stopped and talked with him for some time.
I ________ that you should be invited, but to my _______, they did without you.[ ]
Look out! Can you see some boy students ____ basketball
Paul’s wish is to become a pilot, ____?
I have no idea ______ measures the governmentwill take to stop the river from being further polluted.