Question

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    A A-E- (bring); B-D- (given) Correct Answer Incorrect Answer
    B A-D- (covered); C-E- (require) Correct Answer Incorrect Answer
    C B-F- (focus) Correct Answer Incorrect Answer
    D B-E- (double); C- D- (taken) Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    The correct sentences are: While China has double-vaccinated most of its population the booster campaign has only covered around two-thirds of the population. Sustaining optimised protection for a safe, long-term exit of the pandemic will almost certainly require well-timed second booster doses.

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