A. Fill in the blank with assertive, non-assertive or negative words:
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(1) I think I've lost that green scarf of mine; I can't ______.
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(2) ——"I'd like some more cheese."
——"I'm sorry there's _____ left."
——"I'm sorry there's _____ left."
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(3) I'm trying to persuade him to come but I'm ______.
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(4) Satellite technology offers the opportunity, as _____ before, for continuous television coverage of major international events.