The party, which had been greatly _____, was spoiled by the rude behavior of an uninvited guest.
— You should have told her about the meaning of the gesture. — I meant ______, but I had some unexpected guests.
This building is both a secret and a mystery. No one shall be admitted into it ______ he can give the right password.
— Where did you buy this beautiful skirt? — It was in the shop ______ my mother is working.
China’s hurdler Liu Xiang was disqualified due to false start in the 60-metre event, ______ his rival Dayron Robles of Cuba an easy win of 7.66 seconds.
Whitney Houston’s sudden death suggests that drug abuse is such a serious problem ______ we should deal with properly.