BasedonVocabulary, exercise21.

Usethederivativesofthegivenwordstocompletethesentences

1. [ ]submarinesareanimportantpartofwarships.
2. Silviasmiledafriendly, slightly[ ]smile.
3. Iwasgettingmoreandmore[ ]work.
4. [ ]climaticchangescanseriouslyinfluencetheEarth.
5. SusiespeaksEnglishwitha[ ]accent.
6. Howmany[ ]institutionsarethereinthislocality?
7. His[ ]tastesarewellknown.
8. Thisoldclockwasapresentfrommyfatherandhasa[ ]value.
9. Our[ ]teamhaswonthematch.
10. Wehavealwaysbeen[ ]andwehavealwaysbeensureofoursuccess.
11. Our[ ]workinghoursarefrom9till6.
12. Georgeisavery[ ]person.