Allthesegiftsmustbemailedimmediatelysoastobereceived

問題詳情：

 All these gifts must be mailed immediately so as to be received _________Christmas.

   A. after          B. in time

   C. in time for     D. in no time

【回答】

C in time (最終；及時)和in no time (立刻；馬上)後不可接名詞；after不符合句意和邏輯；in time for sth /to do sth的意思是“來得及；幾時”：Will we be in time for the six o’clock train?我們來得及趕上六點的那趟火車嗎？

知識點：介詞

題型：選擇題