Your taskChoose the correct answer for each question.0 / 15 selectedYour score0 / 150%Keep practising! Review the explanations below and try again.1The farmer was worried because several ___ had escaped from the field.The farmer was worried because several ___ had escaped from the field.sheepsheepssheepesship2We saw a large school of colorful ___ swimming near the coral reef.We saw a large school of colorful ___ swimming near the coral reef.fishfishesfishsfishing3During our hike, we were lucky enough to see three ___ in the distance.During our hike, we were lucky enough to see three ___ in the distance.deeresdeersdaredeer4The autumn wind blew many golden ___ onto the sidewalk.The autumn wind blew many golden ___ onto the sidewalk.leafesleavesleafsleaf5The hunters were warned about a pack of ___ roaming the forest.The hunters were warned about a pack of ___ roaming the forest.wolfswolfeswolveswolve6Most modern ___ are designed to be much more fuel-efficient than older models.Most modern ___ are designed to be much more fuel-efficient than older models.aircraftsaircraftesaircrafteaircraft7The economic ___ facing the country required immediate action from the government.The economic ___ facing the country required immediate action from the government.crisiscrisisescrisescrisise8Scientists have conducted several ___ of the data to ensure the results are accurate.Scientists have conducted several ___ of the data to ensure the results are accurate.analysisanalysisesanalysesanalysise9The university is looking for several new ___ for its research department.The university is looking for several new ___ for its research department.focifocusesfocusfocuse10Lightning and thunder are natural ___ that can be both beautiful and frightening.Lightning and thunder are natural ___ that can be both beautiful and frightening.phenomenonphenomenonsphenomenaphenomenas11The company uses various ___ to evaluate the performance of its employees.The company uses various ___ to evaluate the performance of its employees.criteriascriterionscriterioncriteria12The researchers compared the results on several different ___.The researchers compared the results on several different ___.basisbasisesbasesbasise13The researchers observed a variety of biological ___ under the microscope.The researchers observed a variety of biological ___ under the microscope.stimulusesstimulistimulusstimulis14All the ___ in the kitchen need to be sharpened before we start cooking.All the ___ in the kitchen need to be sharpened before we start cooking.knifesknivesknifesesknive15My grandmother has a beautiful garden filled with different types of ___.My grandmother has a beautiful garden filled with different types of ___.cactusescacticactuscactisCheck AnswersPlease select an answer for at least one question first.Found an error in this exercise? Let us know.