【单选题】A survey of the opinions of experts ____ that three hours of outdoor exercise a week_____good for one’s health. A .show; are B. shows; is C. show; is D. shows; are
【简答题】将下列句子补充完整 1. The scientific human beings first emerging Africa. 证据显示 2. The was all night and it was raining, so I couldn’t sleep. 大风呼啸 3. The machine has to be made of materials that can a lot of . 承...