Whenapersonimmigratestoanothercountry,heshould_(conscious)adapthimselftothenewenvironment
沉默表明他对这个话题不感兴趣。
We______togotothesupermarketbecausewehadplentyoffood.
Nosooner()hadIreachedhomethanMichaelarrivedwithJaneinhiscar
_______(safe)needstobeimprovedontherailwaysinthatcountry
