问题
选择题
--- The dish looked bad, but it_______ OK.
--- So it's not right to judge a man by his appearance.
A． tastes
B．was tasting
C．was tasted
D．tasted
答案
答案：D
题目分析：句意：这菜看起来坏了，但是尝起来还行。所以通过一个人的外表判断一个人是不正确的。tast半系动词，没有被动结构。根据上句，可知用过去时态，故选D。
CH3COOCH2CH3 
CH3－CH2Br 
CH3CH2OH 
