August is the month of a year（根据句意填所缺单词） is the second month of a yearis the first month of a year September is the month of a year is the eleventh month of a yearNational Day（国庆节）is on 1st in ChinaApril Fool's Day（愚人节）isin Children's Day（儿童节）is in
问题描述：
August is the month of a year（根据句意填所缺单词） is the second month of a year
is the first month of a year
September is the month of a year
is the eleventh month of a year
National Day（国庆节）is on 1st in China
April Fool's Day（愚人节）isin
Children's Day（儿童节）is in
答