1．I could just see a car in the distance, but I could not ________ what color it was.
A．look out B．make out
C．turn out D．watch out
解析：look out “小心”；turn out “驱赶，证明是，结果是”；watch out “密切注视，当心”。make out 意为“看清，辨认清楚”，符合句意“我只能看到远处有辆汽车，但我辨认不出是什么颜色”。
答案：B
2．Children won't put on weight easily if they ________ to eat fruit and vegetables.
A．persuade B．were persuaded
C．will be persuaded D．are persuaded
