Despite/However/Although having many friends is essential for a lot of people, others prefer to have just a few.
Although
15
National parks provide an important refuge for wildlife in addition to/additionally/addition being fantastic tourist attractions.
in addition to
15
The latest technology is often extremely expensive. Therefore/While/Nevertheless, those who feel compelled to buy each new model as it appears will end up spending a lot of money.
Therefore
15
Many people fail the test, despite/however/even though they spend many months preparing for it.
even though
15
Despite/Instead/However the undoubted benefits that tourism brings, there are many negatives for residents of popular towns and cities.
Despite
15
Encouraging students to develop more independence helps them greatly with their homework. Furthermore/Too/As well, it will prepare them well for university, should they choose to go.
Furthermore
15
Eating lots of sugar is not recommended (since/because of/due to) it causes several serious illnesses.
since
15
Roads in many cities are very narrow, (since/for/due to) them not being designed for modern traffic.
due to
15
Money should be spent on environmental issues (instead/rather than/in spite of) being spent on space exploration.
rather than
15
Many businesses continue to use the same business model, (despite the fact that/despite that/however) they are losing money.