As the years passed, many _________—birthdays, awards, graduations—were marked with Dad’s flowers.

Mr. Green’s tight _______ made him put off his trip to China.

She is in a poor       of health, which worries her mother much.

---- What made her so upset ? ---- ________ . 

A teacher’s ________ to education is worth great respect of the whole society because it brings benefits to the development of society.