Use in, on, at, by, until if necessary. 1. students usually have their end of each term. 2. the book was rather simple. i read a day. 3. he switched on the radio and same time. 4. it was difficult to persuade her end she agreed to our proposal. 5. he is very punctual, his lectures always . 6. she nearly forgot about their meeting, but fortunately she remembered time. 7- they will be working 7 o'clock today. 8. hurry up! i'm time we get to the station, the train will have already left. 9. have you finished translating the book? — not yet. i hope to finish the end of the month. time did he come? — he came , if i am not mistaken. 11. boogie-woogie became popular in the united states 1950s. 12. they came , tired and hungry. 13. they went to the canteen lunchtime. past he used to be a skilled surgeon. 15.1 am sure, he will be well days.