Sixteen-year-old children shouldn't be allowedbecause they are not serious enough at that age.

题目简介

Sixteen-year-old children shouldn't be allowedbecause they are not serious enough at that age.

题目详情

Sixteen-year-old children shouldn't be allowed            because they are not serious enough at that age.

A. drive
B. driving
C. to be driving
D. to drive
题型:单选题难度:中档来源:同步题

答案

D

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