—Idon'tthinksixteen­year­olds

問題詳情：

—I don't think sixteen­year­olds ________ to drive.

—I agree. They aren't serious enough at that age.

A．can allow          B．need be allowed

C．should allow        D．should be allowed

【回答】

D　點撥：本題用語法判定法解題。根據句意可知應該用被動語態。故選D。

知識點：動詞語態

題型：選擇題