1. 非常 fairly/enough/ quite commonplace

    在……很平常 be commonplace among/amongst

     ……很平常 …… be regarded as commonplace

2.  去国外度假已经变得越来越平常。

Taking a holiday abroad has been becoming increasingly commonplace.

Foreign vacations have become increasingly commonplace.

Holidaying abroad has become increasingly commonplace.

3.我放假的时候很容易赖床。

Sleeping late is quite commonplace on holiday.

I'm prone to sleeping late on holiday.