@hugl,
(A) Christmas tree is (an) evergreen or artifical tree decorated with (/) lights and (/) coloured ornaments in (/) people's homes at (/) Christmas.
All correct.
(An) Easter egg is (an) egg made of (/) chocolate or (a) hen's egg with (a) painted shell, given as (a) present to (/) children at (/) Easter.
(/) Passover is (a) Jewish religious festival in (/) memory of (the) freeing of (the) Jews from (/) slavery in (/) Egypt.
(/) Ramadan is (the) ninth month of (the) Muslim year,when (/) Muslims do not eat or drink anything between (/) sunrise and (/) sunset.
All correct.
(/) Thanksgiving Day is (a) public holiday in (the) USA,on (the) fourth Thursday in (/) November,and in (/) Canada,on (the) second Monday in (/) October
All correct.