Whenever work is being done, energy______from one form into another.

admin2019-07-31  32

问题 Whenever work is being done, energy______from one form into another.

选项 A、converts
B、converted
C、is converted
D、is being converted

答案C

解析 本句空格处意为“能量从一种形式转变成另一种形式”。convert意为“转变;变换”,如:That building has been converted into a school.(那座楼房改成学校了)。根据题意应用被动语句,所以答案为C。
转载请注明原文地址:https://kaotiyun.com/show/Ib2Z777K
0

最新回复(0)