Question

People planning trips home used to believe that only through the railway’s telephone ticket hotline ______ get their tickets efficiently.

A．they may

B．could they

C．shall they

D．they would

Answer 1

B

試題分析：在句首的only如果后面跟了副詞、介詞短語(yǔ)或從句等狀語(yǔ)，則主句用倒裝結(jié)構(gòu)。如only后跟的是主語(yǔ)，就不用倒裝結(jié)構(gòu)了。例如：
Only when the war was over in 1918 was he able to get back to work．
Only the teachers are allowed to use the room．（不倒裝）
句意：計(jì)劃回家的人們過(guò)去認(rèn)為只有通過(guò)鐵路電話訂票熱線才能有效地買(mǎi)到票。四個(gè)選項(xiàng)看，only的倒裝，必須用于句首，在賓從中的句首，也需要部分倒裝
點(diǎn)評(píng)：only置于句首的倒裝情況要注意使用部分倒裝，即將謂語(yǔ)動(dòng)詞部分置于主語(yǔ)前。