Lifeislikeridingabicycle.
問題詳情：
Life is like riding a bicycle. ______ your balance, you must keep moving.
A. Keeping |
B. To keep |
C. Keep |
D. Being kept |
【回答】
B
知識點：非謂語動詞
題型：選擇題
問題詳情：
Life is like riding a bicycle. ______ your balance, you must keep moving.
A. Keeping |
B. To keep |
C. Keep |
D. Being kept |
【回答】
B
知識點：非謂語動詞
題型：選擇題
