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．what, which | D．/ , that |
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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．what, which | D．/ , that |
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