题目内容
【题目】Her mother goes to work ________ bus every morning.
A.by
B.at
C.on
D.in
【答案】A
【解析】句意:她妈妈每天早上乘公交车上班。句中by为介词,其后常跟交通工具,即 by+交通工具,译为“乘…交通工具”,例如,I go to school by bus every day. 我每天乘公交车上学。而B项at含义为“在…”,如,at school,在上学;C项on含义为“在…上面”,D项in含义为“在…里”。in the bus意思“在公交车里”,因此答案为A项。
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