According to a new regulation,a “green card” is________only to foreigners who live in China for 10 constant years.
Learning a foreign language calls for your memory, time, patience and emotions.____, it is not a simple thing.
---- Shall we go to the art exhibition right away? ---- _____.
_______the programme, they have to stay there for another three weeks.
--- Is Mr. Smith in the office? --- Yes,_____ he is in charge of the office,he must be there.
He moved to Germany in _____, when he was in _____.