Question

120.2 Put in at, on or in where necessary. Leave an empty space (-) if no preposition is necessary.
1. a. I'll see you _on_ Friday.
b. I'll see you (-) next Friday. (no preposition)
2. a. What are you doing ___ Saturday?
b. What are you doing___ the weekend?
3. a. They often go out___the evenings.
b. They often go out ___ Sunday evenings
4. a. Do you work ___ Wednesdays?
b. Do you work___ every Wednesday?
5. a. We usually have a holiday ___ the summer.
b. We often have a short holiday ___Christmas.
6. a. Pauline got married___ 1991.
b. Pauline got married ___ 18 May 1991.
c. Chris is getting married ___ this year.

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Answer 1

2.a) What are you doing on Saturday?
b)What are you doing at the weekend?
3.a)They often go out in the evenings.
b)They often go out on Sunday evenings.
4.a)Do you work on Wednesday?
b)Do you work every Wednesday?(no preposition)
5.a)We usually have a holiday in the summer.
b)We often have a short holiday at Christmas.
6.a)Pauline got married in 1991.
b)Pauline got married on 18 May 1991
c)Chris is getting married this year.