现在完成时since能否去掉
比如Ihavelearntmathssince2yearsago可改为Ihavelearntmaths2years
还有这道题Hesaidthathehadmethertwoyears——.
A.beforeB.agoC.for2yearsD.since2yearsago
Hesaidthathehadmethertwoyears——.
邮箱: 联系方式: