If John finishes his homework ______ 10 p.m., he can take the last bus home. 如果約翰在晚上十點前完成他的作業,他就能搭最後一班公車回家。
Can you help me ______ the math homework today? I can’t get the answers right. 你今天可以幫忙我做數學作業嗎?我沒辦法算出正確的答案。