A. add up to
B. add to
C.add up
D.add
A. add up to; is
B. add to ; is
C. adds up to ;are
D. adds to; are
the number of +可数名词复a  number
weight的搭配
of  +可数名词复
add up, add…to..;add up to;add to 的区别
1.You'd better        your scores and see if you have passed the exam.
2. Believe it or not, the number of indifferent([ɪn'dɪf(ə)r(ə)nt] adj. 漠不关心的；无关紧要的；中性的，中立的) passers-by    eighteen, and a large number of people      discussing the incident on net.

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。