网址：http://m.1010jiajiao.com/timu_id_820711[举报]
He’s leaving ______ Beijing next month.
A．to
B．for
C．at
D．in
It’s time _____ school.
B．at
C．for
Please call Gina ______ 87909978.
A．to B．at C．for D．in
He started learning English ________ 10．
He's leaving ________ Beijing next month.
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