Fill in the gaps with in, on, at since

Question

Fill in the gaps with in, on, at since. 
1) The postman delivered the letter … 1.45 p.m. 
2) I woke up …3 o’clock … the morning. 
3) The weather is pleasant here … spring. 
4) Mr Johnson’s birthday is … February 20. 
5) We saw Mr Smith … Los Angeles … September. 
6) Mr.Brown is leaving for Paris … Saturday. 
7) The flight from Miami arrived in New York … noon.

Светлана Молчанова · Accepted Answer

1. at 
2. at, in 
3. in 
4. on 
5. in, in 
6. on 
7. at

Маргарита Зяблова · Answer

2 й класс