When you are home, give a call to let me know you __________ safely.
(2012·浙江) According to scientists, mental abilities begin to __________ from the age of 27 after reaching the highest level at 22.
(2012·安徽) The athlete's years of hard training __________ when she finally won the Olympic gold medal.
The officer insisted that Michael did not follow the correct __________ in applying for a visa.
I wasn't blaming anyone; I__________ said errors like this could be avoided.
When asked about their opinion about the schoolmaster, many teachers would prefer to see him step aside __________ younger men.