.In the country area about one in ten ______ have enough to eat.
A．haven’tB．a(chǎn)ren’tC．hadn’tD．didn’t
D
考查時態(tài)。句意：這個國家的十分之一的地區(qū)沒有足夠的吃的東西。結合語境可知本句描述的是某種狀態(tài)，根據(jù)謂語動詞have可知助動詞只能選D，過去時態(tài)，本句用現(xiàn)在時態(tài)也行，但是不能用完成不能用完成時態(tài)。
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