—Your mother becomes more and more forgetful. —Yes. She searched for her cellphone for a whole day last Sunday but it ___ in her coat pocket the next day.
I really appreciate ____ to help me with my maths, but I’m afraid that I have no time this week.
_____ all my teachers, Mr. Moore is the one who impresses me most.
Unfortunately, ____ stone hit him on ______ head and he got injured.
Though he doesn’t achieve his goals, he is not a failure. ____, he is remembered as a true hero.
– I was going to the concert with you his weekend, but I can’t now. -- ______.