7. It was freezing. Not even the thickest jacket was enough to _______ the cold.
A
work out
B
put out
C
cut out
D
keep out
本题考查了动词短语keep out的用法。结合句意与选项，keep out 意为把…挡在外面，阻挡，御寒，符合题意。句意：天气太冷了，甚至最厚的夹克都不足以御寒。
根据句意可知，天气太冷了，甚至最厚的夹克都不足以御寒。A解决，实现，制定出，消耗完B熄灭，出版，伸出C切断，删去，停止，关掉均不符合题意。故排除。
动词短语意思混淆