问题详情：
With the development of science and technology, robot cooks _______ in the future.
A. appear B. appeared C. will appear D. were appearing
【回答】
C appear为动词原形，用于一般现在时；appeared为过去式，用于一般过去时；will appear为一般将来时的结构；were appearing 为过去进行时的结构。由句中in the future（在将来）为将来的时间状语可知本句应用一般将来时，故选C。
知识点：动词时态
题型：选择题
