問題詳情
32. To keep your teeth healthy, you need to brush your teeth___________ you go to bed.
(A) when
(B) and
(C) after
(D) before
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
用户評論
【賀通過多益考試】評論
To keep your teeth healthy, you need to brush your teeth before you go to bed.為了保持你的牙齒健康，你需要睡前刷牙。