Onecan'tdoextremesports
問題詳情:
One can't do extreme sports ________ he or she has had some training.
A.if B.unless C.once D.since
【回答】
B
知識點:連詞
題型:選擇題
問題詳情:
One can't do extreme sports ________ he or she has had some training.
A.if B.unless C.once D.since
【回答】
B
知識點:連詞
題型:選擇題