1.Theiceisthickenough_____
A.towalkonB.forwalkingC.towaleD.towalkonit
2.Sheoftencomestovisituswithout____whetherwearefteeornot.
A.askedB.askingC.toaskD.ask
3.Theroomissodirtythatisneeds____badly.
A.cleanB.tocleanC.beimgcleanD.cleaning
4.Thepatientisgoingtohavehistooth_____.
A.pulloutB.topulloutC.pulledoutD.pulling