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(单选题)Bikes ______ in 1880s and they ______ travelling around. (单选题)A new function of China’s official train ticket booking webs (单选题)Foreign Ministry spokesman said China had made representatio (单选题)Chinese President Xi Jinping ______ by Manchester United for (单选题)—Excuse me, Sir. But smoking is not allowed here.—Sorry, I d (单选题)—How long have you been learning English?—About four months. (单选题)From that day on, I promised myself that wherever I am in a (单选题)One of the advantages of living on the top floor of a high b (单选题)Most morning reading classes should be made use ______. (单选题)40.（ ）