Among the following four past tense markers -ed,（）is realized by /t/.
A、lived
B、warmed
C、looked
D、tired
【正确答案】：C
【题目解析】：一般过去时态的标志形素-ed在/p，k/结尾的动词后发音为/t/，如worked，helped；而在以元音音素或/m，n，l/结尾的动词后发音为/d/，如tried，warmed，lived，enabled；另外在以/t，d/音结尾的动词后发音为/id/，如 wanted，landed等。
