用 at in on 填空
问题描述：
用 at in on 填空
He is going to telephont __ five o'clock.
2 My birthday is ___ May 21st.
3 It is always cold____February
4 My father was there ___ 1984
5 He is going to arrive ____Tuesday.
答
1 at
2 on
3 on
4 in
5 on