英语翻译国庆节是10月1日在2011年6月1日下午5点我们和小朋友们唱歌

The National Day is October, 1st.
We sung with children at 5 in the afternoon of Jun, 1st, 2011.

The National Day is on the first of october.
We will be singing with some children at five on the first of june,2011.

Oct. 1st is our National Day.
We shall be singing with children at five in the afternoon of June 1,2011.

The National Day is on 1st October.
We will sing with the children at five o'clock pm on 1st June, 2011.

National Day is on the first of October.
We will sing songs with some friends at five o'clock on the first of June in the 2011.
希望能够帮到楼主

National Day is October the first
We sang songs with children on june the first, 2011