which 后面为什么还用has been 这个时态,我认为应该用过去完成时A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground.
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/09 08:15:56
xVN"I~ɾd^ 3hgnh[Q4Ȼ8uy=,zI6pQ]wN5\HgbdƦ'a;Қ$6=%5-V`B6X86M>Njy!ҟ@0HMeCz)H/S <%A?!#/;ْ6>omnH"V"("hsxk7[YroG}z;gd20eZNKL><>>ӾXJː
W{GΙ@
pJiMXYNdh\CwMac9+Cι4QGs2dtnQ@+"|ԖFE:wĚMKqop)k#/^VX{ ψ#42+2A95fWQAL:B#H<2"O9vQ,$Ӕ)5LeT'%>,7NE&爃:#eoYusE)sBNpƍ>P;
ZUVeܼ݂
`]_!l
Pb2D6`8SNYZX^|o
qs3hHi{Tm{ӳ&"S]7&Z/-OuX}x2n Ş'/