pondering on some thoughts that could enlighten my

pondering on some thoughts that could enlighten my 关于英语句子语法的问题“I cannot help pondering over on the profound implications.”和“I cannot help pondering over the profound implications.”这两句哪句对,还是两句都可以,主要是里面是否要用on. 英语翻译in 3rd year,did you pick some lessons then get exams on the lessons you chose in 5th year? -----the morning of Sptember 10th,we are going to give our teacher some flowers.A.On B.In C.At D./ A biack bag with a pencil case and some books in Room 401 on evening of Maich 6th 求翻译 Mother’s Day is on the ___41_____ Sunday in May every year.This year it’s on May 13th.Mother’s Day is on the ___41_____ Sunday in May every year.This year it’s on May 13th.It’s ___42__ a holiday in some other __43___.It is a day to ___44__ What happened on Dec . 25th,1928? 英语翻译原句是：on april 12th ,1961 MarCh 12th( )(on/in)China Friday 13th!Everything depends on you! (teacher) Day is on September 10th on may 12th 阅读填空 谢谢 6th world congress on medical informat There______two boxes of milk on th table. 英语请教on monday ,April 24th? on 10th May 怎么读? on the morning of June 30th on his 21th birthday翻译