Although the peak travel time for Chinese railway doesn't start until Jan 19 this year, people who're eager to get a seat on the train _______ already _______ their struggles.
A．a(chǎn)re; startingB．has; startedC．have; startedD．a(chǎn)re; started
C

試題分析：考察時(shí)態(tài)。本題的關(guān)鍵在于句中的副詞already已經(jīng)；該副詞常常與現(xiàn)在完成時(shí)連用。該句的主語(yǔ)是people，故謂語(yǔ)動(dòng)詞使用復(fù)數(shù)形式。故C正確。
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(yǔ)。要根據(jù)時(shí)間狀語(yǔ)來(lái)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since， so far等經(jīng)常與現(xiàn)在完成時(shí)連用。在條件狀語(yǔ)從句中用一般現(xiàn)在時(shí)代替將來(lái)時(shí)等等。
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