（2013·新课标全国卷Ⅰ） Try not to cough more than you can ________ since it may cause problems to your lungs.
| A． check | B．allow | C．stop | D．help |
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（2013·新课标全国卷Ⅰ） Try not to cough more than you can ________ since it may cause problems to your lungs.
| A． check | B．allow | C．stop | D．help |
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