Jenny _____________ TV on Saturday evening.[ ]
A. watched
B. watch
答案：A
WHO, together with the medical workers in the different parts of the world, _____ trying to find a way to
prevent the disease H1N1from _____. [ ]
A. is; spreading
B. are; spreading
C. is; spread
D. are; spread
简述操作整合的含义及动作特点。
