i must work hard on english.短文改错,为什么要把ON改成AT?i must work hard on english.短文改错,为什么要把ON改成AT?The young man came riding full speed down the road on his bicycle._______it was!A how dangerous the sceneB what dang

I must work hard 是什么意思 At work,I must work hard I wish myself a happy birthday. From now on, I must work hard. Fight for democracy.什么意思 We must ( )(work)hard. this is ____ ,so we must ____ on it.A.a hard work;hard work B.hard work;work hardC.hard work;hard work D.a hard work;work hard Don't want to weigh down again.I must work hard.The dignity of my parents is on my shoulder. I must work hard ___a student 填哪个介词? I know deeply,must continue to work hard.中文翻译! Plentig tree is_____.I must help you.A hard work B a hard work work hard in 还是work hard on i must work hard on english.短文改错,为什么要把ON改成AT?i must work hard on english.短文改错,为什么要把ON改成AT?The young man came riding full speed down the road on his bicycle._______it was!A how dangerous the sceneB what dang for you,for me,for our future---you must work hard ,I must study hard中文是什么这些英文是什么 I found it was hard to finish the hard work on time改为同意句I found （ ）hard （ ）（ ）the hard work on time You must work hard( )English.A.on B.at C.A or B I am w_____ in Chinese.I must work hard at it. I'm not good at G_______,so i must work hard. it found it was hard to finish the hard work on time同一句I found 什么 hard 什么什么the hard work on time To finish the job is ___ .You must ___ .A.hard work;hard workB.work hard:work hardC.hard work:work harkD.a hard work;work hard