- 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) affirms
B) prime
C) lungs
D) culmination
- 3. ... yourself for one of these missions may take months.
A) sacrificing
B) priming
C) equivalent
D) affirming
- 4. You must strengthen your body and ...
A) gear
B) frigid
C) lungs
D) garments
- 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) harnessed
B) pickaxe
C) deduced
D) sacrificed
- 7. Gazing the vast ... of Arctic ice is breathtaking.
A) culmination
B) fissures
C) expanse
D) flannel
- 8. Explorers put up ... as signs of their mission's fulfillment.
A) banners
B) pickaxes
C) garments
D) lungs
- 9. ... are Native American people who live in the northern parts of Canada.
A) fissures
B) gear
C) Inuits
D) lungs
- 10. Inuits' houses, igloos, are ... and warm.
A) equivalent
B) durable
C) deduced
D) affirmed
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