A man does not know the difficulty of anything_________ he does it personally.
The government announced that six highways by the end of last year.
With his eyes _______ on me, he came towards me.
Humans are destroying nature day by day, _____of course, will cause punishment sooner or later.
The little girl was jumping __________ in the kindergarten, waiting for her mother.
. We left in __________ that we forgot to lock the door.