摘要：27．Since she can speak quite fluent English, she . A．must be in the U.S.A. for some time B．must have been in the U.S.A. for some time C．should have been in the U.S.A. for some time D．may be in the U.S.A. for some time

网址：http://m.1010jiajiao.com/timu_id_1691975[举报]