2.His birthday falls in 23 july->on

3.Always take a short nap in the afternoon before you start working again

4.We have class meeting on Saturdays ->meetings

5.We were very lucky not to miss the first part of the play .We came to the theater just on time(Giữ Nguyên)

6.At the end of the day studying,he felt a pain in his chest-> daily

7.Ho Chi Minh city appears extremely beautiful in night-> at

8.We moved into this city on 2009-> in

9.Since 1975 to 2009, I studied at Nguyen Thi Minh Khai high school -> from

10.What are you doing at the time being?-> for

@$Rinne$

$2$. in => on

$3$. talk => taking

$4$. meeting => meetings

$5$. ∅

$6$. day => daily

$7$. in => at

$8$. on => in

$9$. Since => from

$10$. at => for