6.Sheremainsconfidentand______untroubledbyourpresentproblems.
7.Fiber-opticcablescancarryhundredsoftelephoneconversations______.
8.Thepolicewerealertedthattheescapedcriminalmightbeinthe______.
9.Whetheryoulivetoeatoreattolive,foodisamajor______ineveryfamily'sbudget.
10.NowapaperinSciencearguesthatorganicchemicalsintherockcomemostlyfrom______onearthratherthanbacteriaonMars.
11.ThereismuchIenjoyaboutthechangingseasons,butmyfavoritetimeisthe______fromfalltowinter.
12.Ithinkweneedtoseeaninvestment______beforewemakeanexpensivemistake.