○testlevel1○
勝ち抜き戦モード

第1問目
以下の文では、最後の文が未完成です。段落の下にリストされている4つの選択肢から、適切な文を選択してください。
Long before airplanes were invented, people wanted to be able to fly. Early scientists studied birds' wings to see how they worked. Then they built wings of feathers, but when they tried to fly they never .
stayed up in the air for long.

fell to the ground.

spread their wings enough.

hurt themselves.



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