run away;run after; run through

run away;run after; run through  
run through意为“穿过；流过”等。 
run after意为“追赶；追逐；寻找；搜寻”等。
run away意为“逃走；逃跑；溜掉”等。

[EXERCISES]

①The dog       the hare（野兔）now． 
②The river       the village． 
③When the policeman arrived，the thief       ． 
（Keys：①is running after ②runs through ③had run away）