小题1:because of
小题2:more difficult than
小题3:What the height
小题4:shorter than
小题5:Sam is a little more generous than his classmates.
根据题目的要求,注意时态,上下文的时态。
小题1:because of
小题2:more difficult than
小题3:What the height
小题4:shorter than
小题5:Sam is a little more generous than his classmates.
根据题目的要求,注意时态,上下文的时态。