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
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