1) Have you ever gone***? Have you ever been to***? If you have no experience like these, your life is an inadequate one.
2) Are you***? Are you***? We are, usually.
3) In large part as a consequence of***, somebody have focused a great deal of attention in recent years on something.
4) We expect the day will come when A with its characteristic of***
5) Being adj. is one of the virtues that people must possess (not only in***but also in***/during***/when***)
6) What A to B, that C to D
7) Currently, there is a widespread/serious concern over that***
8) The reasons for the***are manifold, for instance, ***
9) Several factors contribute to this***, such as***, as for as I'm concerned, however, ***is the most significant ingredient/element.
10) ***is more violent than what we thought it should be before.
11) There are intimate relations between the two.