問題詳情:
What we need is ______ the mustn't waste time.
A.protect B.to protect C.protecting D.to be protected
【回答】
B
知識點:非謂語動詞
題型:選擇題
問題詳情:
What we need is ______ the mustn't waste time.
A.protect B.to protect C.protecting D.to be protected
【回答】
B
知識點:非謂語動詞
題型:選擇題