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English · CEFR Band 1 (A1) · Chapter 17

The days of the week

at Monday or on Monday?

  1. Emma Minsu, when do you have class?
  2. Minsu I have class at Monday.
  3. Emma With days, use "on": on Monday.
  4. Minsu Oh, I have class on Monday and Wednesday.

The weekend

  1. Jack Emma, what day is it today?
  2. Emma Today is Friday. Tomorrow is the weekend.
  3. Jack Great! Do you have class on Saturday?
  4. Emma No, on Saturday and Sunday I don't have class.
汉字PinyinPOSMeaning
day n. day
week n. week
Monday n. Monday
Tuesday n. Tuesday
Wednesday n. Wednesday
Thursday n. Thursday
Friday n. Friday
today adv. today
tomorrow adv. tomorrow
weekend n. weekend

The days and "on Monday" The days and "on Monday"

The days of the week always take a capital letter: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday. The key rule is the preposition of time. Use ON for days: I have class on Monday, I rest on the weekend. Use AT for clock times and night: at nine, at night. Use IN for parts of the day and months: in the morning, in the afternoon, in July. A common mistake is "at Monday" or "in Monday" — with days it is always ON. To ask the day: What day is it today? — Today is Wednesday.

The days of the week always take a capital letter: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday. The key rule is the preposition of time. Use ON for days: I have class on Monday, I rest on the weekend. Use AT for clock times and night: at nine, at night. Use IN for parts of the day and months: in the morning, in the afternoon, in July. A common mistake is "at Monday" or "in Monday" — with days it is always ON. To ask the day: What day is it today? — Today is Wednesday.

  • What day is it today? — Today is Wednesday. What day is it today? — Today is Wednesday.
  • I have class on Monday and Thursday. I have class on Monday and Thursday.
  • Tomorrow is Friday. The weekend! Tomorrow is Friday. The weekend!
  • I rest on the weekend. I rest on the weekend.

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