Entering the room, they found that quantities of novels _________ on the desk, while a pile of illegal drugs were burned to _________ ground.
_______ late in the afternoon, Bob turned off the alarm.
The picture _______ on the wall is painted by my nephew.
_______ the general state of his health, it may take him a while to recover from the operation.
In order to gain a bigger share in the international market, many state-run companies are striving _______ their products more competitive.
Fishing is his favorite hobby, and _______.