I. Điền vào chỗ trống với in, on, at, after, front of, from ... to
1.  They often go swimming               Sunday.

2.  The meeting will last            7 a.m                    5 p.m.

3.  She will be 13            her next birthday.

4.  We are playing chess            the moment.

5.  It’s often rainy            July.

6.  My birthday is            September 3rd.

7.  The party will start                seven o’clock                 the evening.

8.  He was born               April 2002.

9.  The dog is                  the shelf.