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