Fill in the Blanks B1+ - U2 - VocabularyOnline version Complete the sentences with the extracted words. by Rocío Oviedo 1 clue theory unlikely appearance secrets explanation unusual mystery 1 . She was a very private person who had a lot of . 2 . Nobody has ever been able to solve the of the missing jewels . 3 . We found a that may lead us to the place where they hid the treasure . 4 . It is very that these marks on the rock are natural . I ? m sure people made them . 5 . The traditional homes in this area have a curious . The doors and windows are round . 6 . Do you have a about why the artists chose this cave for their paintings ? 7 . If you find anything in the forest , don ? t touch it . Just tell the rest of the team . 8 . We ? ve found an for the pink colour of the sand . It ? s coming from the bacteria in the lake .
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