sound的现在进行时为：sounding...

apostatize的现在进行时为：apostatizing...

countersign的现在进行时为：countersigning...

excel的现在进行时为：excelling...

corrugate的现在进行时为：corrugating...

mete的现在进行时为：meting...

沿着这条环行线路走一圈，河的两边都可以看到。Both sides of the river can be explored on this circular walk.这是环行铁道.It is a circular railway.月亮绕地球环行.The moon circuits round the earth....

color的现在进行时为：coloring...

die的现在进行时为：dying...

pop的现在进行时为：popping...

stall的现在进行时为：stalling...

eject的现在进行时为：ejecting...

ambush的现在进行时为：ambushing...

baffle的现在进行时为：baffling...

disappear的现在进行时为：disappearing...

give的现在进行时为：giving...

unlock的现在进行时为：unlocking...

slice的现在进行时为：slicing...

abscise的现在进行时为：abscising...

legitimatize的现在进行时为：legitimatizing...

abash的现在进行时为：abashing...

heat的现在进行时为：heating...

arraign的现在进行时为：arraigning...

numerate的现在进行时为：numerating...

drizzle的现在进行时为：drizzling...

gin的现在进行时为：ginning...

carburet的现在进行时为：carbureting...

fly的现在进行时为：flying...

foster的现在进行时为：fostering...

emotionalize的现在进行时为：emotionalizing...