Prepositions of time (at/in/on)

His birthday is ___ 10th April.

I brush my teeth __ the morning.

The lessons start ___ 09:00 a.m.

My brother's birthday is ____ Saturday.

Mobile phones were invented ______the 80s.

We are doing English test ... .

The Internet was invented ___ the 20th century.

We usually go on holidays ... July.

My family always get together ___ Christmas.

Let's go to the cinema ___ the weekend.

It's usually rainy ___ autumn.

in___

We sometimes have lunch _______.

on _________

My mum cooks pizza ___ Sundays.

We paint eggs ___ Easter.