Question

Jane is in a hurry because the train to the airport leaves _______ half an hour.

A．by	B．in
C．for	D．until

Answer 1

B

试题分析：考查介词的用法。此处in half hour意为：半个小时以后。句意：Jane很着急，因为去机场火车半小时后出发。根据句意选B。