我确信他故意说这些话来惹恼我。

I'm sure he says these things ___deliberately to annoy me.

他们中许多人故意选择自行车，只是为了在长时间坐在办公桌前前后至少有一点运动。

Many of them choose the bicycle ___deliberately, just to have at least a small amount of exercise before and after [the] hours they spend sitting at their desks.

她故意不接他的电话，以表明立场。

She ___deliberately ignored his calls to make a point.