Both Mary and John are students．（改为否定句）
It _____John and Mary that helped me the other day.A、has beenB、areC、wasD、were
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My brother has a car.(改为否定句)
John：处死残忍的杀人犯是被容许的甚至是明智的。毕竟公开处决可以遏制残酷的犯罪并减少罪犯长期遭受的痛苦。死刑是一种社会的自我防范。 Mary：你忽视了一个应该优先考虑的问题，即一个国家或社会是否有权利剥夺任何一个人的生命。如果没有这样的权利，那么死刑是否能遏制犯罪这一问题就不那么重要。 如果可以确定死刑不能遏制犯罪，则John和Mary的立场受到哪种影响?（ ） A．John和Mary的立场都不会受到影响 B．John和Mary的立场会受到削弱 C．Mary的立场得到了加强，而John的立场没有受到影响 D．John的立场受到削弱，Mary的立场不受影响
Last Saturday ___________________ had a picnic in Beiquan Park.A、John, Mary and meB、John, Mary and IC、John, I and MaryD、 I, John and Mary
Which command will create a group called ‘delivery’and set the administrators to john’ and ‘mary’?()A.mkgroup -A=john,mary deliveryB.groupadd -A=john,mary deliveryC.mkgroup adms=john,mary deliveryD.groupadd adms=john,mary delivery
Ben has to study for the English test．（改为否定句）Ben ______ ______ ______study for the English test．
1 like the blue sweater，（改为否定句）________ ________ ________the blue sweater．
