―What a heavy rain!―So you’d better _________ swimming today.
The boy doesn’t know how to _________ English words in a dictionary.
There used to ________ a clean river in the village, but now it’s dirty.
--- Thanks for asking me your party. --- ______ .
David talked with a friend of ____ on the Internet for a long time yesterday.
--- The windows are broken and need to be repaired.--- I think so. They can hardly _____ the cold now.