You can only be sure of _____ you have at present; you cannot be sure of something _____ you might get in the future.
Jim was late for two classes this morning. He said that he forgot both of the ______.
—How can I use this washing machine? —Well, just refer to the _______.
You’ve just missed your ______, and you will have to wait for the next round.
His letter was so confusing that I could hardly make any ______ of it.
I paid him £50 for the painting, but its true ______ must be at least £500.