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Correct answers: 7/10.

Your score is 70%.

Check your answers:

1See you on Friday.

➪ We use on for days.

2I brush my teeth in the morning.

➪ We use in for for parts of the day: in the morning/afternoon/evening (except at night).

3The match is at 4 o’clock.

➪ We use at for time

4We have lunch on midday.

Correct answer: at
➪ We use at for time and midday  means ’12 o’clock’.

5I’m busy at the moment.

➪ We use at in the expression at the moment (=now).

6My parents always visit me on my birthday.

➪ We use on for days, and my birthday is a day.

7He was born at the 19th century

Correct answer: in
➪ We use in for years and centuries, and long periods of time.

8He usually goes on holiday in July

➪ We use in for months and years.

9They always get together in Christmas.

Correct answer: at
➪ We use at in for religious holidays: at Christmas, at Easter.

10You can come at the weekend.

➪ We use at with weekends. In American English, on  is used with weekends.