In order to sustain a snowfall, there must be ______to feed the growing ice crystals.

admin2019-07-01  16

问题 In order to sustain a snowfall, there must be ______to feed the growing ice crystals.

选项 A、a constant inflow of moisture is
B、of a constant inflow of moisture
C、a constant inflow of moisture
D、moisture constantly flows in

答案C

解析 The noun phrase a constant inflow of moisture is the true subject of the second clause; there is the false subject.
转载请注明原文地址:https://jikaoti.com/ti/8uhYFFFM
0

最新回复(0)