In many countries more and more forests and even agricultural land are being lost to development, _______ much of the land to become desert.
Everything went on as usual ______ nothing had happened.
A thief slipped into the room without ______.
. The happy look on his face suggested that he ________the final examination successfully.
I would have come sooner but I ________ that they were waiting.
___________ we should do to protect wildlife?