The UN _____ the documents to save the environment in 2007 and they work well all over the world now.A. drew up B. built up C. gave up
A:Mum, how can I make the cake more delicious? B:Add some eggs and mix them_______milk.
--- What languages _____ in that country? ---- German and English
--- Why not go to Lao She Tea house tonight? --- ______
It’s cold outside. ______ your sweater before you go out.
The teacher did what he could _____ his students.