`=>` Điền giới từ at, in, on

`1` The competiton starts ___ `8` o' clock.

`2` He is sending a voice message ___ the momment.

`3` My father worked here ___ the `1990 s`.

`4` ls her birthday ___ July `20th  ?`

`5` Was the old temple build ___ the `19 th` century?

`6` John was born ___ `2008`.

`7` Children always get lucky money ___ Tet.

`8` l will finish the project ___ `2` weeks.

`9` Nam and Phong are reading in the library ___ present.

`10` We have a video conference ___ the first day of the month.