【題目】In the past few years, many schools________the ways of doing morning exercises.

A.changedB.changeC.will changeD.have changed

【答案】D

【解析】

句意:在過去的幾年里,很多學校已經(jīng)改變了做早操的方式。

考查動詞時態(tài)。changed改變,過去式;change改變;原形;will change將改變,一般將來時;have changed已經(jīng)改變,現(xiàn)在完成時。根據(jù)時間狀語“In the past few years”可知,這里用現(xiàn)在完成時,其結(jié)構(gòu)是have done的形式。故選D。

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