To give up!For the first time back on track!

Need to track down time on the machines for a better Total P What's the time for things to give up.What's the time for th Students should give back the books to the library on time.保 The books must[ ]return to the library on time A give back B You must give the MP3 back to me on time.You must _____ the Is the time to give up . At the first time、The first time、For the first time 、On the the first time to do还是for the first time on the first time ;in the first time; at the first time; for To give up playing time,bent on studying English是什么意思 good to have your help back on track For the first time for me to listen to you.