By the time he arrives in Beijing, we ______ here for two days.

A．will have stayedB．will be staying
C．have been stayingD．have stayed

A

解析試題分析：考查時(shí)態(tài)：句意：在他到北京的時(shí)候?yàn)橹�，我們已�?jīng)呆在這兒兩天了。說明我們?cè)谶@兒待兩天是在他到這兒之前，用過去完成時(shí)。還有介詞by，是和相應(yīng)的完成式連用的，by接過去時(shí)間，用過去完成時(shí)，by接將來時(shí)間，用將來完成時(shí)。選A。
考點(diǎn)：考查時(shí)態(tài)
點(diǎn)評(píng)：時(shí)態(tài)題的考查關(guān)鍵是抓住句子的上下文含義和句中的時(shí)間狀語。要根據(jù)時(shí)間狀語來選擇合適的時(shí)態(tài)，在平時(shí)的學(xué)習(xí)中要注意積累有關(guān)時(shí)態(tài)的用法和各種時(shí)態(tài)的特殊之處。如介詞by經(jīng)常與相應(yīng)的完成時(shí)連用。

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