- 1. Explorers ... many things to achieve their missions.
A) affirm B) harness C) sacrifice D) deduce
- 2. Fulfilling their missions ... their conviction to explore more.
A) lungs B) culmination C) prime D) affirms
- 3. ... yourself for one of these missions may take months.
A) equivalent B) sacrificing C) affirming D) priming
- 4. You must strengthen your body and ...
A) garments B) gear C) frigid D) lungs
- 5. The Arctic is melting fast. In one summer it lost 11 billion tons of ice - ... to 4.4 million Olympic swimming pools.
A) equivalent B) flannel C) banner D) frostbite
- 6. From the loud crack, the explorer ... the ice had broken.
A) sacrificed B) deduced C) harnessed D) pickaxe
- 7. Gazing the vast ... of Arctic ice is breathtaking.
A) culmination B) flannel C) expanse D) fissures
- 8. Explorers put up ... as signs of their mission's fulfillment.
A) lungs B) banners C) pickaxes D) garments
- 9. ... are Native American people who live in the northern parts of Canada.
A) lungs B) fissures C) Inuits D) gear
- 10. Inuits' houses, igloos, are ... and warm.
A) affirmed B) durable C) equivalent D) deduced
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