_____ is not difficult to learn English well.
Please don’t smoke here. The sign _______ “No smoking.”
A smile costs ______, but gives so much.
In my opinion, he doesn’t seem __________ to take this job.
--- The match is so exciting. The opposite team is really strong. --- You’re right. But I am sure _____our team will win!
It’s wrong ________ Amy to look down on the blind.