Doing sports at least one hour a day helps to        ourselves       .
A. build...up             B. send...up               C. pick...up
A

試題分析:build...up建立,增強;send...up 提出,使上升;pick...up撿起,學會.句意:每天最少做一個小時的鍛煉有助于增強我們的體質。故選A。
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