如图所示，电荷为q=-C的微粒在匀强电场中运动, 电场强度E=N/C．其运动轨迹为竖直面上半径为R=0.1m的圆，如微粒质量m=0.1kg，且顺时针匀速率由A运动到B，此过程中外力做功多少?

The young man who stole many bikes  _______  the day before yesterday. [ ]

A. was catching

B. is caught

C. caught

D. was caught