下面的字不属于左右结构的是（ ）。

veThey _________ the plne, or perhps they hve been prevented from coming for some reson.cn hve missed B．cn hve lost C．my hve missed D．my hve lostA．can have missedB．can have lostC．may have misseD．may have lost

em is—Don’t you think it necessry tht he ________ to Mimi but to New York —Igree, but the problem is ________ he hs refused to.will not be sent；tht B．not be sent；tht C．should not be sent；wht D．should not send；whtA．will not be sent；thatB．not be sent；thatC．should not be sent；whatD．should not send；what