No one imagined that the apparently _____ businessman was really a criminal.

After the long journey,  the three of them went back home, ＿＿＿＿＿＿ . 

Managing money has long been a headache for students mostly supported by their family, who find it ________ to deal with their finances.

It was early in the morning and the traffic was _________.

Upon reading the notice all the staff of the company stood there        ,  looking     at each other.