不定式的进行式表示的动作(情况)与谓语动词表示的动作同时发生。
【例如】
He is said to be studying in Harvard.
The children appear to be enjoying themselves at the party.
Betty happened to be playing in the garden when her teacher called.
They are reported to be building another bridge across the river.
I'd rather read than watch television; the programs seem( )all the time. (CET-4 1997,1)
A) to get worse
B) to be getting worse
C) to have got worse
D) getting worse
Seem后面接不定式作宾语。时间状语为"一直",表明"变坏"的动作一直在进行,因此用不定式的进行式,答案为B。