Some people who don’t like to talk much are not necessarily shy；they        just be quiet people.

 If we ______ day before yesterday, we would have done the job.

(2009安徽蚌埠月考) There _____ be any difficulty about passing the road test since you have practiced a lot in the driving school.  

 I don''t think it any use taking with him , you ____ as well leave him alone . 

— The terrible accident is under investigation．— Actually, quicker action _____ those workers trapped in the mine．