非谓语动词难题二道
1.-whatcausedthepartytobeputoff?
-_____theinvitation.
A.Tomdelayedsending
B.Tom'sdelayingsending
C.Tomdelayingtosend
D.Tomdelayedsend
2.Ican'tgetmycar____oncoldmornings,soIhavetotry____theradiatorwithsomehotwater.
A.run,tofillB.running,sleeping
C.running,tofillD.ran,filling
1B2B
请说明详细原因,