You need not renew the book if you can not finish it in time

You need not renew the book if you can not finish it in time if you can’t finish reading it in time ,you can renew it 翻译成 you can not finish the race if you rest all the time 1.You must not c___ in the exam,even if you can't work it ou You can not finish the race if you rest all the It's better not go out if you can't finish your homework这个句子 you need not return the book to me now,but you m____ lend it The work is so difficult that we can not finish it in time() you can not open the box if you do not If you walk in the street you need not to watch the traffic You can do it if you want to,but in my opnion it's not worth Can you hand in your homework on time?I;am afraid not.I need