問題詳情:
You’d better not hand in your test paper ______you check it carefully.
A. if B. unless C. though D. since
【回答】
B
知識點:連詞
題型:選擇題
問題詳情:
You’d better not hand in your test paper ______you check it carefully.
A. if B. unless C. though D. since
【回答】
B
知識點:連詞
題型:選擇題