1. Write in, at or on
1, in the morning
2, ... Tuesday afternoon
3, ... night
4,...Wednesday evening
5, ... 10 o'clock
6, ... 1812
7, ... the spring
8, ...the afternoon
9, ...Satutday morning
10, ... the weekend
11, ... Thursday
12, ... May 1st
13, ... the evening
14, ... Sunday evening
15, ... 1912
16, ... January
17, ... midnight
18, ... the Summer
19, ... March 2nd
20, ... 7 o'clock
21, ...August
2, ..on. Tuesday afternoon
3, .at.. night
4,..on.Wednesday evening
5, ..at. 10 o'clock
6, .in.. 1812
7, .in.. the spring
8, .in..the afternoon
9, ..on.Satutday morning
10, .at.. the weekend
11, ..on. Thursday
12, ..in. May 1st
13, ..in. the evening
14, ..on. Sunday evening
15, ..in. 1912
16, ..on. January
17, ..at. midnight
18, ..in. the Summer
19, ..on. March 2nd
20, .at.. 7 o'clock
21, .on..August
1 in the morning
2 on Tuesday afternoon
3 at night
4 on Wednesday evening
5 at 10 o'clock
6 in 1812
7 in the spring
8 in the afternoon
9 on Saturday morning
10 on the weekend
11 on Thursday
12 on May 1st
13 in the evening
14 on Sunday evening
15 in 1912
16 in January
17 at midnight
18 in the Summer
19 on March 2nd
20 at 7 o'clock
21 in August