The traffic rule says that the children ______less than 40 pounds and under the age of four must be in a child safety seat.
A．being weighedB．weighC．weighedD．weighing
D
考查非謂語動(dòng)詞的用法。Weigh意為權(quán)衡，重量為……，用法為the box weighs 40 kg.因此sth 跟weigh之前是主動(dòng)關(guān)系，此處weigh在句中作children的定語，weighing="which" weigh
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