"1st Installment is paid in full for VET."中的VET是什么意思

1st Installment is paid in full for VET.中的VET是什么意思 1st Installment is paid in full for VET怎样理解?其中VET是什么意思?1st Installment is paid in full for VET前面还有一句:Payment for the course according to the invoice ( )1st is May Day June 1st is the (T )is January 1st. in 11 years' time嗯.意思是?在11年以后,在未来11年之内?所以从现在算下一次发生这个事件是10年,还是11年?原文：the 1st installment being in 11 years' time. may day is ( ) may 1st . ( )1st is Party's Day (C )Day is on June 1st. july 1st is our P____ birthday June 1st is C( ) Day. October 1st is our N.Day Children’sDay is on（）1st Fools’sDay is on（）1st today is may 1st.the day after tomorrow is() April Fool's Day is on April 1st 对on April 1st 提问 The English party is June 1st.说出意思在对June 1st.提问 Labour Day is May 1st.对may 1st提问.