星星lyx
幼苗
共回答了25个问题采纳率:76% 举报
(One way) a weekend exerciser can measure whether he or she is training the heart (is) (to check how rapidly the pulse rate drops after a workou) 先找出句子主干.其余的成分虽然很长,也得一步步分析.看见can,前面应该是名词或名词词组作主语,而can后面应该加动词原形,此处是measure.后面whether引导了一个从句.
1年前
7