In the past three decades ,___ significant advance has benn made in ___ modern agriculture.A a; /B the ; aC / ; theD a; a表泛指的时候,我怎么知道它是用a 还是/

in the past three years 还是 in the three years past?哪个正确? 为什么是in the past three years而不是over the past three years In the past three yearsHow do you think about your school life in the past three years?What have you learnt in the past three years? in the past three years是用过去完成时还是现在完成时? in the past,most Chinese ate three meals a day. China_____(发展)quickly in the past three years. what about your studies in the past three in the last three years和in the past three years的区别rt,尽快回答 in the last three years与in the past three years的区别,好像一个用过去式,一个用现在完成时? 英语翻译I studied in.middle school in the past three years.这句话有没有问题? The changes about our country have brought many benefits in the past three years改错 急 The changes about our country have brought many benefits in the past three years改错 The changes about our country have brought many benefits in the past three years改错 we leave the zoo at half past three in the afternoon The young man has written three bopks in the past two years.翻译成汉语 with the help of teachers,they have made great progress( )A three years agoB in the past three yearsC for three yearsD before three years in the past three years 可以用于一般过去时吗?通常怎么用? Nanjing__(change)a lot in the past three years.3Q3Q!