Hiking is _____ great fun. You will get close to ____ nature and take exercise at the same time.
A.a; the | B.a; 不填 | C.不填;the | D.不填;不填 |
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Hiking is _____ great fun. You will get close to ____ nature and take exercise at the same time.
A.a; the | B.a; 不填 | C.不填;the | D.不填;不填 |