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You can only be sure of_____you have at present;you cannot be sure of something  you might get in the future.

A.that;what                                                      B.what;/

C.which;that                                                    D./;that

You can only be sure of_________ you have at present; you cannot be sure of something _____ you might get in the future.

  A. that; what       B. what; /              C. which; that              D. /; that

 You can only be sure of __________ you have at present; you cannot be sure of something __________ you might get in the future.

A. that; what   B. what; / C. which; that   D. /; that

You can only be sure of_________ you have at present; you cannot be sure of something _____ you might get in the future.

  A. that; what       B. what; /              C. which; that              D. /; that

You can only be sure of_________ you have at present; you cannot be sure of something _____ you might get in the future.

  A. that; what       B. what; /              C. which; that              D. /; that