Without proper lessons, you could ____ a lot of bad habits when playing the piano.
He came to my class every week, but his attitude _____ that he was not really interested in the subject.
The writer was so ________ in his writing that he forgot to flick the ashes from his cigar.
The sign reads, “In case of _____ fire, break the glass and push _____ red button.”
We _______what our soldiers have done for our country.
They are fighting ________us _________the enemy