I don’t think the experiment is _________ failure. At least we have gained _________experience for future success.
There is not much tine left and every minute _____.
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.