Bài tập 9 điền giới từ in / on / at chỉ thời gian 1. September 2. 12 o'clock 3. winter 4. Easter Monday 5. 4th July, 1776 6. Christmas 7. Tuesday 8. the weekend 9. my birthday 10. the end of the week Bài tập10 Choose the best answer • The train leaves ___ five minutes, hurry up. at in on • I'm going to America ___ April. at in on • He doesn't work ___ Sundays or Mondays. at in on • In England the shops shut ___ 5:30. at in on • She never feels very good ___ the morning. at in on • She is starting work ___ June 4th. at in on • What do you do ___ the evenings? at in on • I can't sleep ___ night these days. at in on • Where are you going ___ the summer? at in on • He was born ___ 1966. at in on • The school is closed _______ Sunday. at in on • I wake up ____ 6 am everyday. at in on • Kim was born ____ 1981. at in on • I go to sleep ____ night. at in on • She will go to her friend's house ____ Tuesday. at in on • Jack and Jill play ___ the same time. at in on • Christopher will come back ___ a week. at in on • My birthday comes ___ December. at in on • Sheila will give a nice greeting card to her mother ____ Mother's Day. at in on • The school prayer starts ____ 8 a.m. at in on • We wear warm clothes ____ winter. at in on • Mary is celebrating her birthday ____ May 3. at in on • I will see you ____ the morning. at in on • I will come and visits you ____ the Christmas holidays. at in on • I completed my work ____ two hours. at in on